Andax:
I know there's already the text pop-ups like AWESOME.
But these sounds are similar and really add to the game =).
http://www.youtube.com/watch?v=oq-37V_CayA&feature=relatedLoved em in Quake and Unreal. Whenever theres certain kills or a player doing really well etc.
Implement them where you will.
tomhb:
It's gonna be a cs fake...
I also think that there shouldn't be that many PowerUps.
One which could increase your attack for a short period of time would be fun but... freeze, invisibility... This game isn't Mario kart :P

Powerups for speed/strengh... good ideas
I also think that the point have to be counted according to the kills AND the death of the char. (if it's not already done but i don't think so)

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