It seems very small for an infiltration map. Next time you could copy the texture file to sceneries, and use it as a background for the structure. rabidhamster, those are colliders, not the support beam itself.
thx for all your feedback, I'm working on a much bigger map now...
by the way, yes the tower does look like it, but that doesn't really matter since its just there to keep players from getting up the roof.
Ingame, you ussually won't see the top of it. And yes its meant for a maximum of 6 people.