Put your suggestions here. It can be big or small. People who code these kinds of things don't have to do so, of course.

My idea:
First off, the game is split into X amount of rounds, and these rounds have 20 seconds before they start. After those 20 seconds, a few random players are selected (these amounts vary depending on how many users are in the game) and these players become Skaarj. These Skaarj have about 500-1000 HP so it's hard to kill them. Another random player is selected and gets some funky exclusive weapons. The Skaarj have to melee attack the Humans, and when they do, they become one too. As the humans die and the number of Skaarj increases, the humans will find it hard, so the last few players (also varies depending on how many players in the game) will get exclusive weapons (possibly melee weapons) which can cause 200HP damage with a left click and instakill with a right click.
Alright, let's hear your ideas.