Fixes after playtest #1
- removed levels city07, forest03
- bunker01_8: fixed symmetry of weapon spawns
- bunker05_8: switched duck spawns to avoid direct line of sight
- city12_8: moved duck spawns closer to the center
- city13: fixed symmetry of weapon spawns
- forest07_8: moved duck spawns to avoid immediate shots situations
- forest19online: removed duck spawn in the wall
- industrial01: moved duck spawns higher
- level2: moved duck spawns to the middle, moved weapon spawns away from edges
- level4: moved duck spawns to the middle
- level5: moved duck spawns higher
- level8: moved duck spawns to the level's edges
- office05: moved weapon spawns away from walls (a little)
- office06: moved duck spawns for better balance
- office15: extended delay for weapon's spawns
- snow06: moved duck spawns to the top edges of map
- snow10: moved duck spawns higher and to the middle
- space06_8: moved duck spawns a little higher
- space09_8: moved duck spawns to the top edges of the map