I can see why KFC would do such a thing, I was there and it was indeed a fun time. I didn't use any modified files though. I was invited to it through teamspeak and joined. I thought it was just a regular .2.2 server, then I saw the miniguns. After killing a guy I could actually pick one up and use it.
Apparently in .2.2 all the weapons were synched. I saw smoke grenades, and of course the camera too. I don't even know what guns were included in .2.2, and at the time thought the minigun and all the others were part of it.
Anyways, from my perspective I see why KFC did this, as it was all in good fun, and people should just drop it. However, they did violate the EULA, which is illegal. As far as calling them cheaters, they didn't do it in a public server and didn't have an unfair advantage over everyone. When I played almost everyone had a minigun, including myself.
Its not like they cheat in public, and they certainly aren't harming anybody by doing so in their own server. It does still violate the EULA though, which is a big no-no. Now I hope nobody starts accusing me of having modified files, I've never even modded VC single player. I'd suggest that people just wait until a member from the MTA team shares his opinion on the subject.