The internet modes are so intense. I love it.
There's the marauder shotgun that's just... Oh god, it's just orgasmic. It's like a super shotgun that shoots several hot spikes of steel into the other guy. Essentially a 1-shot kill if you get enough in them, or a headshot. Not to brag, but I've gotten on a 17 kill-spree without getting ammo for it, and it's only got like 20 rounds total. :C
Not to mention the other packs! There's one, sight... The most useful one there is. You can see all the thermal action on the field, meaning you can see EVERYONE, similar to when you use the railgun. It's so pro.