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Medieval MECH_FORTRESS A2

Redid the entire layout since the old one kinda sucks. That's really it, I didn't do much with the mode itself except for changing the capture sound since some people mistook it for upgrading.
Shouldn't crash the servers anymore. I hope.
Messed up a1 so i had to make a new update (dont download mech_fortress_a1)

Also fixed resupply triggers
And the mech's stuck prevention (good thing i fixed that, thats a bad bug)