The release pointed out some errors in the game, it needs to be polished. This update fixes mechanics, level construction and some little bugs.

You can get out of it. If you got trapped, move slowly, don't flounce or you will die.
The soldier slows down the speed of falling by touching the walls. That increases the reaction time and makes the jumps easier.
Now it is possible to customize the keyboard controls as an option.
There are no “mines” in the game, but there are “minefields”, with dangerous and safe areas. The safe areas you can move through are better to recognize now.
We added a difficulty settings menu, where you can enable or disable checkpoints, barbed wire visibility and marking of enemies when they appear.
Collected dog tags are not saved on checkpoints. You must disable the checkpoints to collect all of them.

• Fixed errors in the text.
  
• Fixed a bug when the soldier died at the start (missions 5 and 7).
  
• Fixed a screenshot bug on F12.
  
• Improved the shooting from the tank at the level "IRON FIST".
  
• Fixed bugs at the level "STEEL FRONTIER”.