Ive been having a lot of fun with MW3 lately and I love getting any tips I can, here is a list I want to share with you.

• 3 UAVS at the same time from different people on the same team become Advanced UAV
• With Color Blind Mode enabled you can see enemy Stealth Bomber
• Sitrep will tell you if an enemy care package is real or not
• You can level up your sitrep by deploying and then destroying your own Trophy System
• On an enemy strafe run, shoot the middle helicopter to take out the other two. They will give you multiple points towards your pointstreak for each helicopter destroyed
• Get Blast Shield Pro (immune to flash and stun nades) by blowing up barrels and cars while standing next to them
• Turn off theater mode for less lag
• Specialist killstreak + hardline = fast leveling up of pro perks (can get hardline pro in a few games)
• When using specialist, don’t have your original 3 perks include Sleight of Hand or Scavenger, but have them as your rewards since you won’t need to reload or get more ammo until after you have already killed a few enemies
• Shooting down air support, taking dom points, capture and returning flags, and assists (with hardline pro), all count towards killstreaks *Assassin will keep you from being seen by UAV/AUAV, but Blind Eye will keep you from being shot by helicopters/AC130, do not confuse the two
• Juggernauts have about 500 health, and can heal all of it back if they take no damage for long enough. They are NOT invincible, and can be easily killed with focused fire and surrounding them, 5 knives also does the trick. When someone has a jug on your team, let them enter a firefight first, draw fire, then you enter in and kill everyone doing the shooting
• Bouncing Bettie’s don’t affect you when in prone, no matter how close you are. All weapons (at least ARs and SMGs, not sure about shotguns and sniper rifles) get an increase in idle sway the longer you aim down sight
• If you clear all your Assault Killstreaks and use only UAV and hardline, you can get a UAV for every 2 kills. This applies to everything killstreak

More MW3 tips should be added from time to time at the source