True, I've complained about realism problems in every sim I've played. I was going to mention that I never complained about realism in Tomb Raider, but then I reread and noticed you said "about war".
There is the 'Longer Repair Times' mod. I don't know how well it works, as it came out after I lost my ability to play. It's funny to refer to the good points of SH2, but in spite of the lack of career mode it did have them. I don't know what the answer is, but I agree, there are still things in SH3 that need direct code fixing.