rc3

- mission balance and timing fixes by Llutozz
- clipping fixes and improvements
- detailing improvements

rc2

- reduced the height advantage for the battlements near tunnel exit
- added small cover for the robots at the start of the map
- fixed flank nav prefers at the start of the map
- killed gross sightline from the curved path to the robot spawn
- added some cover and health + ammo pickups under the bridge to make playing lowground stronger
- added little scaffoldings as quick ways up to the highground from lowground (ravine). (robots are too dumb to use these)
- adjusted robot engineer nests
- added missing vgui images
- detailing and clipping improvements