I was playing an old game of unreal the other day and it occurred to me that should be a new menu in Sins. a series of switches much like the victory conditions or the game options list where you can turn things on or off. I don't know what you could call it but it would allow a game hoster to tweak the game in some interesting ways
-Superweapons On/Limited/Off (I think there is a global limit of 3 super weapons now, so limited would be 1.)
-Cap Ships On/Limited/Off
-Strike Craft Ships On/Limited/Off
-Mine Fields On/Off
(Limited means that you are limited to a number of capships, to be determined by the hoster)
those are just my suggestions, what other things would you like to see in a Mutator list of sorts.