Create a big map including Livonia and Namalsk (link them with very dangerous pass like tunnel, swamp etc) with 400 slots servers, add season (some servers have winter Chernarus, drastically change the gamplay) .
Gameplay/survive are ok, just need some little improvements or details. Loot and ressources are ok, its a survival game not crafting game.
For weapons may be some bow or crossbow could be fun. More stance like in Arma3 (crouch, semi-crouch, etc) please.
Add helicopter.
Add Horde.
Darker night.