SourceTowers Map (Valve Hammer .vmf) file

-------------------------------------------------------------------------------
Point Entities:
-------------------------------------------------------------------------------
towers_spawn - Location where enemy will spawn from.
towers_move - Waypoint Position for enemy to move to after spawning. Enemy starts at Waypoint Position 1 and goes in order 2,3,4, etc. as many as you want.

-------------------------------------------------------------------------------
Brush Entities:
-------------------------------------------------------------------------------
towers_path - Visible brush entity that doesn't allow building.
towers_castle - Castle entity that enemy must crash into.
towers_nobuild - Invisible brush entity that doesn't allow building. You can also move freely through this entity.