The bold is pretty much the entirety of the Iraq war...I'm glad you recognize that city fighting is nastier and more confusing than spraying into treetops into a jungle...
Really, I would say the Fallujah campaign was pretty close...Or the fight in Ramadi from 04-07, how about the battle of Baghdad, or maybe the triangle of death. Baqubah could get particularly nasty and Al-Qaim never really got under control. The one common theme...it was ALL in the city. If you look at the average casualty percentages for the grunts, it was about the same. I lost half my platoon killed or wounded on my first tour (including me), and even more on my second. We just had better armor, training, and medical care (and even faster access to it)than you guys did. That's why more of us survived, not to mention there were a helluva lot less of us in country at any time in Iraq or Afghan than by Tet in 68.
If you were a grunt then it was likely more of the same...I saw my fair share of combat with an enemy one room removed from me...combat where we were screaming and yelling obscenities at one another. I have buddies who killed the enemy with their bare hands, and most of us had killed at least one of the enemy with a knife or bayonet...something I don't think a door gunner is acquainted with...and we still absolutely tried to distinguish between the bad guys and the good. So don't sit here and tell me that "we wouldn't know". You DID know, and you did it anyways.