Get over here and enjoy the ride, bro. We’re starting to win.

Over 9000 - shot in the marking to pass through a metal detector, in general, do everything possible to attract the horde. In survival mode it works best, especially if you give the command to put the barrel in place of the appearance of zombies, and suddenly zombies start otaku when they approach. Thick, but if the troll is rather thin and can prikidyvatsya an idiot, you can deliver. Also, in jukebox'e have a song in the chorus which is a line "All we want to do is eat your brains", ICHSH every time the phrase comes horde.
Friendly Fire - in any game mode on difficulty level "master" and "expert" (sold at an average level of complexity, but requires over 9000 games of experience by virtue of negligible damage, however, to calculate a skilled troll is at times difficult), " accidental "causes uncontrollable seizures shot hatred. This also is attributed "random" undermine over 9000 gas bottles and cans. With due skill you can take down your health more than do infected. A special case is execution gas station on the third campaign map «No mercy», for the best of circumstances burst put in place the whole team.
Bonfire - the defense in a closed room (can be on the street, but not cake) to throw Molotov cocktails / a can of gasoline at the feet of his team ... HATE. The optimal place - lift the campaign «No mercy» and other showdowns with horde (especially good to throw a gun).
Sounds - senseless and merciless sounds in voice communications. It is advisable to put in the settings: "The microphone is always enabled." There is also a fairly subtle trolling: find files in game sounds or wheezing crying witch tank and put them. Maybe it works, and a simple cough into the microphone (with anguish). Some individuals put there sound drugs.
False alarm - a variation on a theme. You can bind a key to the cry of "Tank!" And shout to the site and not to the point, good sniff of the tank to distinguish more complex than the sounds of other bosses, but the danger of its much higher. Method more effective in combination with the previous one (sounds witches and tanks in the voice chat).
Gatekeeper - the traditional POOL IS CLOSED. Do not give the survivors go through the door. As soon as they open - you need to immediately close the door. (Warning: the zombie bosses will suddenly appear behind the pylorus, and put the troll on the blades than the robust design will deliver all Survo. Nuff said.)
Disgusting spray - put in spray or dismemberment nigra. Simple and thick. As a bonus, when you are thrown, spray left.
Suicide - jumping off a building and catch. After pulling you back again. And you can cry in zvukochat: "Everything will be there," "See more" or "I will saddle his flying horse." Disadvantage: after the third or fourth time saving stop. Advantage: if you fall, together with you will sink into oblivion, and your first aid kit. Also, if you hold down the spacebar, the Survey does not catch on, and immediately fly down.