Fun fact: 9/10 users with no linked gamertag are better than you at Halo. That doesn't necessarily mean that I am; but it does mean there's a pretty solid chance.
You boost Campaign commendations (not that it matters in the slightest).
You play for kills in Grifball, and don't do it particularly well.
You're painfully average at BTB.
You're bad with a DMR, but 'decent' with a Sniper- provided you're the only one on the map with one.
You whore vehicles in Invasion and BTB.
You've tried Arena and MLG, but suck at both.
You use Armour Lock regularly, but don't rely on it every game.
Melee, Sword, Gravity Hammer and Shotgun are all in your top K/Ds, along with Banshee, Wraith and Revenant- which suggest you have a penchant for rushing or perhaps camping, but only when you can't abuse vehicles.
tld;dr: You're bad, and your feeble attempts at stat padding are laughable.
[Edited on 03.01.2012 11:04 AM PST]