I've created some configs, admin access and patched a bunch of games on our servers. Basically we can switch the l4d2 servers to a different game by loading a different config. We pay by the slot so if we've got 4x8 slot l4d2 (32 slots) servers we can switch this to 1x32 slot bf2 server or combinations e.g. 2x8 slot l4d2 and 1x16 slot tf2 etc.,
I expect this to be used infrequently, as I'd prefer to keep the l4d servers up, but from time to time a planned insurgence into another game might be fun
Age of Chivalry
Battlefield 2 (unranked)
Battlefield 2142 (unranked)
Call of Duty 1
Call of Duty 2
Call of Duty 4 (mw)
Call of Duty 5 (waw)
Counter Strike Condition Zero
Counter Strike 1.6
CSS
Day of Defeat Classic
Day of Defeat Source
Enemy Territory
Fortress Forvever
HL2 Deathmatch
Insurgency
Killing Floor
L4D
L4D2
Quake 3 Arena
Red Orchestra
Return to Castle Wolfenstein
Team Fortress 2
Team Fortess Classic
Zombie Master
Zombie Panic: Source
and before you go.. "can we install...?" the answer is no
MonkeyFiend