Any game mode you want.

[Z3R0]

Carrythenade xD

Nade would spawn at a flag point.
When you pick it up you lose your weapons.
You score a point every 15 seconds of carrying the nade.
If you die while carrying the nade it will be where you died.
Nade will explode and kill the carrier after 60 seconds of being carried.
Nade does not count down while not being carried.
Once exploded nade will spawn at one of the flag points again.

I think it sounds like fun :P