Also thought I would add in the following info/rules about Game Battles matches.
The GB website seems to be down at the moment but when its back up I can get a complete and up-to-date rule list.
All Games
Hardcore Mode: Disabled
Allow Killcam: Enabled
Headshots Only: Disabled
Allow Sprint: Enabled
Force Respawn: Enabled
Wave Spawn Delay: None
Max Health: Normal
Health Regen: Normal
Spectating: Team Only
Friendly Fire: Enabled
Class Editor: Allow Player Classes
Killstreak Editor: Don't Allow Killstreaks
Perk Editor: Allow Perks
Game Recording: Enabled
Party Privacy: Invite Only
Capture the Flag
Time Limit: 5 Minutes
Flag Return Time: 30 Seconds
Enemy Carrier on Radar: Delayed
Touch Return: Enabled
Round Win Limit: 2 Rounds
Capture Limit: 10 Flags
Respawn Delay: 7.5 Seconds
Number of Lives: Unlimited
Note: CTF Matches are tied in the event that both teams capture the same amount of flags combined in rounds 1 and 2. In the event of a tie, teams must replay the map.
Demolition
Time Limit: 3 Minutes
Bomb Timer: 45 Seconds
Plant Time: 5 Seconds
Defuse Time: 5 Seconds
Extra Time: 2 Minutes
Round Switch: Every Round
Round Win Limit: 2 Rounds
Respawn Delay: 7.5 Seconds
Number of Lives: Unlimited
Domination
Time Limit: 8 Minutes
Score Limit: 1000 Points
Round Limit: 1 Rounds
Flag Capture Time: 10 Seconds
Respawn Delay: 5 Seconds
Number of Lives: Unlimited
Note: Domination matches will consist of two rounds, one round played from each spawn. Scores will be added together to determine the winner. In the event of a tie in score, the map must be replayed.
Search and Destroy
Time Limit: 2.5 Minutes
Bomb Timer: 45 Seconds
Plant Time: 7.5 Seconds
Defuse Time: 7.5 Seconds
Multi Bomb: Disabled
Round Switch: Every Round
Round Win Limit: 4 Rounds
Number of Lives: 1 Life
Banned
Secondary Launchers
Flak Jacket
Nova Gas
Decoy
All Equipment
Warlord
Second Chance
Grenade Launcher
Flamethrower
MLG Maps
Capture the Flag Firing Range
Capture the Flag Havana
Capture the Flag Launch
Capture the Flag Radiation
Capture the Flag Summit
Capture the Flag Villa
Demolition Firing Range
Demolition Havana
Demolition Launch
Demolition Radiation
Demolition Villa
Domination Firing Range
Domination Grid
Domination Havana
Domination Launch
Domination Nuketown
Domination Radiation
Domination Villa
Domination Summit
Search and Destroy Firing Range
Search and Destroy Grid
Search and Destroy Havana
Search and Destroy Launch
Search and Destroy Nuketown
Search and Destroy Radiation
Search and Destroy Villa
The class set up people usually run is Lightweight, Sleight of Hand and Ninja. This is the best set up IMO.
Guns tend to be Famas (although I believe this has been banned from future MLG events so that may come into effect on GB).
Dual pistols
Frag
Flash
The main thing to get started on is knowing the call outs and nade spots on the maps mentioned above.
There are tutorials on YouTube or we can practice them in a private lobby.
5punk3monk3y can I not tempt you into getting involved?