Thought I'd make a thread to share tips/information for playing tremulous, so everyone is playing on a level playing field.
Tips, might not all be correct:
. Booster poison adds poison attack to all alien attacks. Works nicely with granger spit.
. Grab is useless against battlesuits.
. Gas is doesn't affect humans with helmet or battlesuit. Might scare them a little

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. Chaingun is more accurate when crouched.
. Jetpack can be used to get down from a ledge quikly. Just fall down and use jetpack before you hit the ground.
. If you inmidiatly repress secondary fire after releasing it and repear on landing then as a dragoon you can keep on jumping and pounching. Very fun and effective. A special bind could make this easier.
. /bind key "buy ammo" allows for quik ammo buying at armoury. Also works on unpowered armouries.
. For some energy weapons, it is faster to sell and rebuy the weapon to reload then using the reactor or repeator to reload. Special binds can speed this up even more.
. Headbites do more damage then chestbites then legbites.
. Turrets turn slowly. Moving in a circle or just quikly left to right makes it easy to kill turrets with little damage.
. Tesla coils need a defense computer to work. Dragoon barbs can easily take out defense computer. Two barbs also take out armoury.
. Alien buildings need an egg or overmind nearby. Try finding it and destroying it, all alien buildings depending on it will die.
. Later in the game you might want to replace obstacles with hovels. Both have the same slowing effect, but hovels are cheaper and can take more damage.
. For humans building and jumping on an turret, armoury and reactor allows you to reach higher places. Useful on some maps.
Just add tips you've got.