Ok...
BUT
and
the main idea of the project was to do all sorts of stuff with a fight And the level at the docks was more like training...
the point was different weapons have different possibilities in moving, so a light pistol allows you to jump and strafe faster (in the files of the game there is same light one-handed sawn-off shotgun, but I probably can't be able to add it)
The second level is about more accurate jumps
Level 3 is cut out, it should have had fight for learning how to use the ring