I have a couple of tactics to add to this list (people fall for em every time!

)
1) Run out without suppression and/or smoke, the enemy will be so surprised (I mean, nobody else does this do they?) that they won't fire for those crucial few seconds.
2) Always try for the 360 no-scope, especially if you are the last person left on your team (out of reinforcements or countdown mode). If you succeed you will be hailed as a god!
3) Team-play is for n00bs, go solo, you are way stealthier. Also the objectives have a high concentration of enemies, it is better to attack buildings in the surroundings and wait for a lost enemy to come to you!
/Sarcasm... I hate people who do things like this... and I have seen number 2 before, it was pathetic.
