it's the most annoying thing about this map
One could say it's part of...the game *ba dum tsh*
Joking aside it's just one of the bits of rng you could have. Another game spot that tends to have a generator, the upper floor one can either have a small door open giving 2 escape routes without having to use the jump-chute or closed off so a stealth killer could get an easy jump on you. Swamps sometimes has a gen literally against the end of the outer bound walls.