tl;dr — alone you last a night; as a team you build a future.
Roles
Fighter, Scout, Engineer, Medic — each pulls weight. A balanced squad covers more ground and survives the night.
Shared stakes
Loot and defenses are shared, and so is failure: the fall of one player endangers the whole group. Co-op multiplies both playtime and tension.
Tech
P2P co-op for 2–4, friends-first. We're hardening sync for scavenging and base-building under pressure.
Next
Drop-in / drop-out and role re-assignment mid-run.