1/you meet some farmers/civilians/salvagers (innocent folk) who are being attacked by low level evil doers.
1.1/ the map can be a farm/small community. something with walls and choke points.
1.2/ a sniper tower would be awesome.
2/you can stay and defend their farm, but the waves escalate into stronger ones.
3/each wave gives XP based on your level.
4/ 80% chance to spawn wave 2
70% wave 3
50% wave 4
30% wave 5
10% wave 6
1% wave 7
4.1/ prep time between waves gets longer and longer. in case people want to radio for help.
4.2/ wave 7 is MASSIVE and the location becomes public.(2 minutes prep time)
4.3/ you can use the farmer's radio to make the location public at any time.
5/ rewards : the emphasis should be on good XP.
6/ more xp for less casualties(on civilians' side, players don't matter).
7/ smaller chance to spawn than normal enc.
8/ players who kill other players will get NO XP - or they can get marked as free kills with no consequences.