>>494164depends.
With the concrete, a few stomps confirmed it for "yea, probably safe".
On that roof I climbed the ladder shifting my weight very slowly and/or banging the planks with my fist a few time before stepping onto it. It helps that I am probably only about 70kg with all my gear on.
What I worry about most is actually the ceiling in those tunnels/basements, because if I fall through the floor, I'm either lucky (and I am a lucky sob) or I break my legs or something, big deal, comrade Josev can drag me out. But if the ceiling caves in, bam, rocks to the head, goodnight. We thought getting Stahlhelms (lol /k/ommandos), but again, if the ceiling caves in in those drainpipes or whatever that is, it's probably over anyway. Ave nex alea.
