
1, Experience: XY amount of alltogether frags/captures/recoveries etc
2, Skills: this is the most widespread one, it can contain quad frags, midair mortars, midair rockets and other stuffs
3, Weapons: these are the weapon accuracy and alltogether number of frags based on weapons, just as fisume said
4, Combos: the usual kill combos as already implemented on the list, also it cound contain flag capture combos and other similar stuffs
5, Fun: those kind of achievements that are not trivial to be completed, or extremely extremely hard to complete. Example for a not trivial/fun frag: midair hagar secondary, or electro secondary

So, what do you think?
