So, I just had a quick suggestion as the title says. Last night for the op, I really enjoyed playing the Pistols, Knife, Grenade only thing. I think it could be useful to have some sort of thread which lays out specific game mode types, like a Pistol only sort of thing.
For example, last night could of been Conquest Deathmatch, where each team just holds their respective outside nodes. (A and C) Then everyone fights over B in the middle, making for some good private deathmatch fun. OP's could be given the game mode type so that everyone knows what to expect.
The game modes would be optimum for playing from private matches, where we normally have only 4v4 - 8v8.
Then in addition to the game mode, "modifiers" could be stated, like pistols only. (Or PKG Only, etc.)
Could give us a way to add some interesting variety (Medics only, Recon only, etc. could be interesting.) and while challenging us to use new tactics which could help for Gamebattles and all that.
Also, as a general rule of thumb, for games with 5 or 6 players on each team, it is nice to have everyone stay out of a squad, that way everyone can chat over the "No-Squad Chatroom."
I think laying these things out before-hand could prevent some confusion in game, and let people know what to expect. Ah well, thats my 2 cents.
EDIT:
Also, the class specific modes would restrict to the classes items. No all kit stuff like shotguns and the USAS-12. So Engineer only would be a match with submachine guns and rocket launchers. Could have an all-kit mode, where we can only use the shotguns and g3, etc.