Hydra a4

Received help from b4nny with preliminary balance.

• platforms added to last to help defenders
• block added to pit-side path to allow crouch jumping to high ground
• column trunk added to 2nd low ground
• block added half way down dead-end near mid

• forward spawns no longer close until all players leave
• map boundary near mid more obvious with added debris

file

• Forward spawns are no longer always accessible.
• Performance: fixed an issue causing faulty portal flow and long compile times, added hints to limit maximum leaf size, narrowed view between points with addition of 3D skybox, organized nodraw floor at map base.
• added a sign in front of mid forward spawn.
• added ramp stand-in at dead end
• bushes playerclipped (can stand on)
• -1 custom hud compiled
• raised brazier above healthkit
• cold hard bricks now further away