new game type

I was just thinking (like i do sometimes), and i came up with some ideas and want to hear some feedback. i got this ideas from the good old unreal tournament: A monster/alien mode- its when a bunch of players join a game, and there is a couple monsters that will run around and maul people and do creepy stuff. the main idea is to locate and kill as many monsters as you can. so basically, whichever team has the most monsters killed when the time limit runs out/monsters all dead/players all dead wins.

another thing i thought might be cool was kinda of like a FFA, except there is one enormously huge map, somewhat like an mmo type, where the map would always be open and people could come and go whenever and only 1 person could stay in the game yet it would still stay open, would be better if like 30 people could join.

again, i highly doubt any of this will go through. I just thought they were interesting ideas.