Well, when i readed a message in a thread i made, it said that we need to create our own game so i thought about using perks...
The "Perks" is almost used in some fps shooter games like Combat arms, Fallout 3, FNV, Call of Duty, etc, etc, this perks will not use only by the humans but aliens too, however, the perks will change depending in wich team you are, aliens or humans, in the aliens team the perks will appear randomly for each player, for the humans they will buy it at the armoury or as same as aliens
For example:
Aliens:
They have a perk that if you kill a certain number of humans in one life, the alien will get 20+ life in the actual life and in the second...
Humans:
When the humans had used the medkit and they are too away from the base depending on the kills they have in the actual life can heal themselves using the opponents life, like the vampaire mode, but this perk will need to be charged once they use it...
However, i plan to make more perks and you can help too, with my mistakes and tell me how to improve it, btw you can create more perks if you like...