For anyone who is interested:

http://www.dino-it.de/TanxBoss.zip

Improvements:

- 3 selectable difficulties for each level at briefing screen
- killed enemys drop pickups randomly (no tank extensions, only ammo and repair kits)
- keyboard will not be loosed when changing screen resolution
- fixed artifact in title screen
- fixed wrong appearance of pickup texts
- finishing the tutorial caused the ending scene to appear *lol*
- fixed artifact of gunfire when firing on smoke particles
- all 4 levels available in this beta to play around with
- several unnoticable bugs fixed

Tomorrow I will review my levels and change or redesign them.
So the levels in this release are again just for playing around with all engine features.

Greetings,
Dirk