These are my suggestions.
Adjustable particles.
like say if i wanted to add more gore, or less gore, there would be a cfg for that.
or if you wanted to adjust how many particles show up from a grenade explosion, there would be a cfg for that.
or if you wanted to adjust how many particles show up when you break a block, there could be a cfg for that too.
Vehicles.
no cars though. those would hardly work. maybe aircraft carriers, helicopters, and jets like bf2.
would be fun to have a dogfight.
Larger explosions. and a rocket launcher(would help destroy the vehicles.)
A demolition game mode, similar to counter strike or call of duty. Or sorta like rush in battlefield.
A death match game mode.
bullet drop. (would make sniping more realistic.)
less fog.
Class customization like COD or battlefield.
I would say 3d cubes instead of 2d cubes on the characters and guns. but you are probably already working on it.
textures.
secondary weak weapons like pistols.
an actual zoom on the rifle. like a functioning scope.
silencers.
A main menu with settings and options.
An in-game server browser.
An in-game map editor.
