Here is a video depicting what is said to be the current Russian MRE
https://www.youtube.com/watch?v=d4bQmPpj9i4
I’d supplement little animals also. Stray dogs is open season if you can’t keep up your caloric intake.
As bobo666 wrote, soldiers always complain about their food.
They standard warning in the officer corps is: when they stop complaining, start looking over your shoulder.
I found military food to be excellent. I wondered what the complaints were all about.
I concluded it was just something, anything, to complain about.