I like obscure conflicts in Command, even hypothetical ones.
However, there’s one (not insurmountable, but still present) issue I’ve fond with would-be post Soviet conflicts. The issue comes from the Soviet-era force structures. In many ex-bloc states, a conflict in the scenario editor ends up in an unequal squash. Surplus aircraft with little standoff capability go against top-of-the-line air defenses designed to stop the USAF.
Thankfully, there are workarounds. Plot ones like saying the missiles aren’t totally deployed, in-game ones using WRA and proficiency changes to make the SAMs less effective, or, in the case of large countries, taking place in an area where the best defenses wouldn’t be stationed anyway.