Can someone explain how to work with game_mp_gamerules ?
Next to the smartedit button in Hammer, there is a help button. Pressing it shows all the inputs for the selected entity.
Anyhow these are the inputs you can play around with:
EnableCanisterDrops Re-enable the canister drops on death. (Canisters drop by default)
DisableCanisterDrops Disable canister drops on death. (Canisters drop by default)
SetPointsPerFrag Set how many points one frag is.