Since this site isn't finished yet, here is a lonely tip from Patator_Warrior:
"A huge part of the work for Axis is in the last part of the map, when they want to fire the
big gun. Allies are defending the gun very well from the top of it. The
Allies spawn is near the gun with two ways (one behind and one in front
of it). A good thing to do is to construct the gun control if it was
blown. OK. And next? Go hide behind it before the Allies set up their
last line of defense. The only thing your teammates must do is to drive
the second thug near the gun (a medic with many packs can do that). The
Allies will defend the path to gun control (i.e. the ladder).... But you
are already here! In two seconds, go and fire the gun... They will not
understand what happened: nobody has climbed the ladder!"