They should have made founders edition of the game purchasable, added beta access to that. Could still have done it in waves but then founders get priority maybe.
This game would suit first person so well, it's so tense & atmospheric. Whilst 3rd person kind of detracts from that, just being able to hide & 3rd person peek over walls & stuff.
How viable would adding some kind of vaulting mechanic be? Kind of like battlefields, through windows, up small rocks & over fences. Nothing like Pubg vault everything but a good middle ground.