cp_beachcannon a6a

a6a
-small fixes

a6
-added more displacements
-revised a route going to last
-revised a transition route
-added a health kit and ammo kit for attacking A
-minor detailing

a5
-added the Tactical Tank
-fortified the last point
-did some minor detailing
-changed the skybox to a more fitting theme
-updated the lighting to fit the skybox

a4
-fixed some clipping issues
-little retexturing
-more brushwork