HUNK's voice actor was amazing - exactly how I expected him to sound. I might be the only one on this but I actually didn't mind Carlos in UC; except for that bit about his accent just disappearing into thin air, that annoyed me. (Especially when they still had him calling Jill "chica" - it sounded so...geeky and out of place without his accent. If they wanted to do away with the accent - which they probably did because people *****ed when RE3 came out saying his accent was too generic - they should have done away with the Spanish slang.)
Keith Silverstein was awesome, one of the few talents to come out of UC. Now he didn't really have a voice actor before, there was a voice RE2, but that was uncredited. I hope to hear Silverstein as HUNK in the future, actually it seems like HUNK is in RER.
Considering that most, if not all of the UBCS members were from a foreign country, Carlos from South America, Nicholai from Russia, same with Mikhail, it makes more sense to have the accent, at least partially.
Also keeping in mind that nobody in UC was really any good, except the aforementioned HUNK, Sergei.....maybe Chris & Jill.