Hackers and modders--What should I be looking for?

Red clan tags are legit. It's for having a maxed out clan level. I'm curious about the blue ones I've been seeing lately though.

Beware of 10th prestige(rs) with despicably low gamersores in their XBL profiles, such as sub 1000gp.

While this suspicion is indeed conclusory in nature, please form your own opinion when you notice these guys' skill and style of play appears as if they have a "permanent oracle" running an entire match.

^^Or you could just use the color as the clan tag like "(RED)" for W@W and it would be red.

Just to be clear, a colored clan tag IS a hack? I have seen them so much, I thought it was something you get from clan wars or some other game mode.

I always check the lobby leaderboards & see if theres anything out of the ordinary, like a big score per game etc. In-game, I would check ppls kills & deaths when a helicopter is called in, i'll give an example, I was in a game recently when a guy called
in a chopper gunner 3 times in a match when he had a score of 34-17, thats pretty much impossible unless you go on a 33 kill streak, which he didn't. I then checked his trophies & he had just 1 trophy, I made the complaint. Thats what I look for.