Survival Mode Game modes:

Supplies Limited: You start of well armed, but supplies is limited. Fight till death.

Defend the Area: A series of different areas (maps) to defend against enemy's. Kills get points. The better the enemy the more points you get. You also get points for head shots and other types of kills. You can use these points to stalk up on ammo, new guns, equipment, and or med kits. Fight 15 round until you die or survive.

Run Like Hell!: You are able to free roam within the area (map) while you face enemy's spawning from random places on the area (map). Although it may start out easy enemy's get more health, faster, smarter. Fight till death

Left for death: Supplies is not a problem. You also have several turrets. You are left to defend an area while your squad escapes to safety. Defend 10 rounds and your teammates are safe. When they finally get to safety you will win. You will win but if you want to be alive you have to survive another 5 rounds for them to come to the rescue. If you don't survive those 5 extra rounds you still win but you do not survive they encounter.

Definitions: Med-kits: Med-kits allow your teammates to survive for another 30 seconds so you can attempt to revive them.

I know some of these ideas need improvements but what would you think about a survival mode in RAGE? I think it would solve all the lack of multiplayer. What do you think?