Unreal Tournament Bots
Bots will usually group together and enter a base attacking as a group, instead of one at a time. It is possible to just defend and have your bots do all the dirty work, but depending on the skills of the competition that could take a long time. In Assault, I often tell the bots to cover me, and get ready to enter a heavily guarded room and then tell them all to ATTACK. I watch them go into the room and mayhem ensues and they manage to take out a wad of foes, which makes my job easier.