I'm all for a mod of EXU2 that implements the UT SDK's features.
I'll probably leave that up to EXU2's Mod-modders. I haven't really had much time to look into incorporating those features, though they are impressive. I'm focused primarily on building later-game maps at the moment. The good news is that progress is steadily ramping up, so I'll be over some humps soon.
Today I've started implemented experimental AI features for bots to the Hell Gun, namely the alt fire, to prevent them from using it if friendlies are present, but I'm going to add more conditions later (like if friendlies<enemies, use it anyway, or if one of the enemies is a flag carrier, etc). Going to also add some randomness to that so that bots will show restraint, but still blow your ass away now and then, because it IS pretty funny when they do that even at the worst possible times
[Edit] LOL, holy shit, while testing these AI tweaks (made some tweaks to the RFPC and Clusterfucker as well), I played a 16v16 match using only Hell Guns with all damage set to 1 per shot to see how my logic works out ingame. Then I witnessed this spectacle:
Shitloads of demonic explosions, but no deaths. The flag carrier ended up just getting stuck in a huge crowd of bots and hellblasts erupted occasionally, but not constantly. Hilarious.
[Edit2] Gahahahaha the Clusterfucker test was even better: