A couple days ago, I was playing on a server (don't remember what it was, but it was like 10-12 people at the time) and - after getting numerous kills with the Spade and actually having people run up to me with the spade in an attempt to redeem themselves - I came up with a sort of game-mode idea.
Spades 'n' 'Nades.
The only weapons you are allowed to use are Spades and Grenades. When I came up with this and suggested it on the server, only one other guy (who I suspected to be aimbotting every once in a while but not constantly) decided to join in. We happened to be the best players on the server at the time (evident by our respective kill counts). It was pretty hilarious having one Spades n' 'Nades player on each team when everyone else had full weaponsets, just running in and ambushing people trying to capture intel or find sniping spots, etc.
Anyone think this would be a fun idea too? I considered starting up a server specifically for it, so if there's enough interest I could make it a fun weekly event or something.