The matches in GROUPS & PLAYOFFS will follow a BO3 format, where the opposing team gets to pick their preferred side on your chosen map. To determine which team removes the first map, a knife round will be played.

Grand Final:
The Grand Final match is a BO5 format. The Upper bracket winner will have a map advantage. The system of maps for the Grand Final is as follows: PICK - PICK - PICK - PICK. The Lower bracket winner will start the picking process.

Map mp_backlot_fix must be played. If mp_backlot is played, the results will not count and the match must be replayed.

Maplist:
- mp_backlot_fix
- mp_citystreets
- mp_crash
- mp_strike
- mp_crossfire

Matches are to be played on EU FPS Challenge servers. If these servers are not available, teams may use fshost or their own servers.
Every match must be played on FPSPromod 2.63 (fps_promod_263) or a newer version.
Servers must be running on the latest CoD4x version.
The promod_mode "knockout_league" (10-second strat time) is to be used, unless both teams agree to play in the "knockout" (5-second strat time) mode.

Each player is required to record a demo of every map played.
Demos can be requested by contacting opposing team in the match chat on website. A valid reason for the request must be provided, such as suspicious smoke shots, pre-firing, or cheating.
Demos must be provided within 24 hours of the request.
Failure to provide requested demos will result in a forfeit of the match.
If a player's demo is missing more than 3 rounds, the map where the rounds are missing will result in a forfeit.

A team have a maximum of 15 minutes to have all 5 players ready on the server and ready-up from the scheduled time. If it takes longer than 15 minutes, the opposing team can claim a forfeit win. The time between maps is a maximum of 10 minutes, if it takes longer, the opposing team can claim a map forfeit. The halftime break is a maximum of 5 minutes, if a team exceeds this time, they can use a timeout, otherwise the opposing team can claim a map forfeit."
e) Bugs & Glitches:
It is prohibited for any player to take advantage of map bugs (such as elevators, areas outside the boundaries of the map, or areas under the map) or glitches during a match.
Glitching is defined as moving or seeing through or over a physical object and is not permitted, such as the crash roof stairs bug.
Self-spectating is not allowed, including looking downwards next to an object or far from an object, allowing the player to see while remaining unseen (e.g. looking down through a window on Crash while standing on a wooden crate, allowing the player to see players on the A site without being seen themselves).
Boosting is only allowed to assist players in reaching spots that can be reached by normal means.
Standing on another player's head to peek is allowed, as long as it falls under the above rule.
Boosting by shooting one's own players is not allowed.
Players are only allowed to bounce to places which can be reached without the use of a bounce. Bouncing to roofs and balconies which are unreachable by normal means is prohibited, unless they are provided in the "allowed spots" list.
Players caught using bugs or glitches will forfeit the round immediately. If this occurs on more than 2 occasions, the map will be forfeited.

It is prohibited for any player to take advantage of map bugs (such as elevators, areas outside the boundaries of the map, or areas under the map) or glitches during a match.
Glitching is defined as moving or seeing through or over a physical object and is not permitted, such as the crash roof stairs bug.
Self-spectating is not allowed, including looking downwards next to an object or far from an object, allowing the player to see while remaining unseen (e.g. looking down through a window on Crash while standing on a wooden crate, allowing the player to see players on the A site without being seen themselves).
Boosting is only allowed to assist players in reaching spots that can be reached by normal means.
Standing on another player's head to peek is allowed, as long as it falls under the above rule.
Boosting by shooting one's own players is not allowed.
Players are only allowed to bounce to places which can be reached without the use of a bounce. Bouncing to roofs and balconies which are unreachable by normal means is prohibited, unless they are provided in the "allowed spots" list.
Players caught using bugs or glitches will forfeit the round immediately. If this occurs on more than 2 occasions, the map will be forfeited.

Any violations of this rule will be reviewed on a case-by-case basis by an admin.

List of allowed spots that violates last rule:

Crash:
Bounce on the edge of the balcony - 0:12

Strike:
Bounce on the roof above A site and side balconies - 0:34
Bounce on the entrance B wall - 0:43

https://streamable.com/adlla1

Scripts and config tweaking that affects game play, including but not limited to nade scripts, wait commands, macros and so forth, including configs that change commands/rates, are prohibited. These commands range from set nade binds to gain the longest throw to scripting a superior firing rate of semi-automatic weapons.
This also includes multi-command binds such as bind KEY "toggleads; +attack" on the scroll wheel.
Using the scroll wheel to shoot is also illegal. This includes both binding +attack to your scroll wheel as well as scrolling very fast and then holding mouse1, which can be done with certain mice (e.g. to spam your deagle quickly).
Players caught using illegal scripts and binds, including nade scripts, will receive a forfeit loss.
This also includes binds that use a bug exploit. Depending on the bind, the player can receive a ban for bug abuse.
Any game modification, such as changing .iwd files of the game (e.g. weapon or model skins), is prohibited.
Any player caught cheating by demo or anti-cheat will result in a ban. We have a zero-tolerance policy.

It is mandatory for all matches and you should also use the proper match ID.
If the anti-cheat crashes or does not work as intended, teams must immediately contact an admin for further instructions.
If the anti-cheat catches a player using macros via drivers or by config such as, but not limited to, nade scripts, zoom scripts, fast-shoot scripts, etc., the team will receive a forfeit loss and the player will be banned.

Teams must ensure that all players participating in the match, including players on their own team and the opposing team, as well as any killspectators, are using the anti-cheat. Teams cannot claim forfeits for failure to use the anti-cheat after the match, as it is the responsibility of the team to check beforehand.

It is not allowed to defuse or plant the bomb on the top of the bombsite while proning. Defusing or planting while standing or crouching is permitted.
This rule is in place because planting or defusing while prone makes the player nearly invulnerable to grenades and there is no easy solution to address this issue.
If a team violates this rule, the round will be lost. If a team violates this rule more than 2 times, the map will be forfeited.

Killspectating is automatically allowed if the player is listed on the team roster and is using the anti-cheat. If the killspectator is not part of the team, players must request permission from the opposing team and he must be using the anti-cheat.

Every team has 2 Wildcards. These can be used to postpone a scheduled group match. Once a Wildcard is used, the wildcarded match must be completed by the end of the group stage. If the match is not completed, it will be forfeited. To use a Wildcard, players must notify the League admin and the opposing team's captain in the #nations-chat channel and also in the match chat on site and state that they are using a Wildcard. Wildcards can be used at least one hour prior to the scheduled match time to prevent waiting for nothing and save players' time.

Teams are required to play two matches per week (matches are generated for each week - for example Round 1 & Round 2 etc). Each team has two wildcard options to postpone a match if they are not available. However, it is important to note that any postponed matches must be completed by the end of the group stage.
Teams have the flexibility to schedule their matches on any day within a given week. However, if a common date cannot be agreed upon for scheduling a match, the following default dates will be used to determine who will receive a forfeit:

The default date for the first match of the week is Tuesday at 8:00 PM CET.
The default date for the second match of the week is Sunday at 8:00 PM CET.

Teams that are able to play on these default dates will result in a win for them.

If teams are unable to agree on a common date within the 7 days given, the team that offered fewer available dates in a given part of the week must use their wildcard, if the team does not have a wildcard, the match will be forfeited and they will lose the match.

Dates that fall between 18:00 and 21:00 CET and are offered with a minimum notice of 4 hours in the MATCH CHAT ahead will be considered valid available dates. If either team is unable to play within this time frame, the proposed date and time must be confirmed by both team captains. Please note that any dates and times outside of this range will not be considered as valid offered dates unless both captains agreed on a specific time.

If teams offer the same number of available dates but are still unable to find a common date, the team that offered to play on the default date will be granted the win.

The captains of both teams are responsible for scheduling the matches for their teams and must make every effort to contact members of the opposing team to properly schedule a game. If the team captain and other members of the team are unable or do not respond in a timely manner, or do not provide any available dates to play, this will be taken into consideration in forfeit decisions.

a) General roster rules:
Team MUST have minimum of 5 and maximum of 8 players.
Prior to the first tournament game, players are allowed to freely change their line-up.
Each team can add 2 new players for the entire tournament, regardless of team size.
Players cannot leave a team on their own, they must be removed by the team captain.
To remove the team captain, all team members must agree and a new captain must be chosen.
A new player can be added to the team before or during a match, but it is essential to communicate this update clearly in both the nations-chat and match chat on the site, informing everyone that a new player is being added to the roster.

b) Group Stage:
If a player is removed from a team and has already played in some matches, they are given 1 team change.

A team change can be used to join any other team, subject to the following rules:
- The new team cannot have any members from the original team.
- The player cannot re-join his original team.
- The player cannot be removed from the new team.
- The original team must have at least 5 members after the player's removal.


c) Playoffs Stage:
If a team have any unused player changes from the Group Stage, they may add a maximum of 1 new player.
The new player must adhere to the following rules:

- The player cannot have played in any playoff matches.
- The player cannot have been removed from a team and joined another team in the Group Stage.
- The player must have been removed from their original team, if applicable.

- A CoD4 Admin may join any nations game at any time and spectate any team for any duration.
- Screenshots from every map of every game must be posted in the #nations-screenshots channel.
- Only team captains are authorized to schedule and confirm games, unless they delegate this responsibility to another member of their team.
- In case of a server crash during a round, the round must be replayed from the beginning.

- Any player found to be engaging in abuse towards another team or player will be given a warning or ban. Repeat offenses may result in a ban.
- Abusive behavior towards an admin, whether in-game, in the dispute chat, through private messages, or in any other form, will not be tolerated and may result in an instant ban.
- Threats of rape, death, harm to family, or illnesses, as well as doxing (the release or seeking of private information), are strictly prohibited and will not be tolerated. Such actions may result in an immediate ban.