Exercises done by the US military make plenty of these kinds of assumptions. For example, the Red Air Force is allowed unlimited regeneration, assuming overwhelming enemy resources at hand, while the Blue Air Force is often attrit at varying degrees with no allowance of resupply and/or reinforcement at all.
These guys do not realize that when Americans play war games, at least how the USAF does it, we often rig the exercise to make the Blue force lose. The idea is to stress everything, from humans to machines to logistics, to their failure points. When I was active duty and in England, we had NATO inspectors walk the area telling maintainers who 'died' and who got 'wounded', and those who got 'wounded' became demerits for efficiency or simulated inefficiency. For example, if a jet was fixed in 1 hr, it was not allowed to be on the sortie list for 2 hrs, simulating inefficiency from the 'wounded' man. The idea was to see how many maintainers a squadron could lose, or how many supply trucks are 'destroyed', or how badly damaged is the ammo dump, before the squadron can no longer contribute flyers to the day's sorties. The longer any squadron can contribute, the closer that squadron is examined after the exercise to see why and if whatever it has can be replicated.
If we go by how people here know and perceive exercises, the US military should have lost every fight since WW II. I tried to explain in the past that we do not have exercises to make ourselves look good but often to see how far we can go before we fail. I suggested people should take news reports and commentaries with suspicions because usually the reporter/commentator do not have the necessary clue on how the military run things. Does not seems to sink in. They all seems to go to see how much they can post derogatory things about the US.