My apologies but MoH Allied Assault ran with two add on packs and in my opinion was just as good as the original 1999. Underground was exceptionally good also. And i'm sorry to say this but if there were no improvements but just the same code with new eye candy then what was the difference between CoD1 CoD2 and CoD3? CoD5 was far too unrealistic for my liking. Rising Sun was a great game also, it was different (even somewhat new compared to the others) although it was a console MoH. European Assault could have been MUCH better than it was i'll admit, but the style of gameplay was great even if it seemed like the kills were taken in a crappy hitbox manner. Airborne was terrible, could have been much more than it was but they chose to make small respawnable maps for single player with German Supertroopers with Mg42s on super flak towers that were 5 times as big as the real ones.
But MoH 1999, MoH Underground, Allied Assault with both expansions, Rising Sun, and definitely Pacific Assault were all top of the line. (speaking of PA, what do you mean two headshots? i still play it and i never have a problem with it. One shot one kill for the head.)
And don't deny one bit that the soundtracks for MoH have one upped BF and CoD all along...
That tells me you played the console crap and never experienced the hardcore multiplayer on dedicated servers, the PC version never had expansion packs for MoHAA. Aside from the horrendous hitbox system, the character controls and movement sucked. In single player, all of the titles were ok if all you were looking to do was frag some stupid AI. A decent player could run through the entire single player mode in 8-12 hours on full hardcore.
If you had played PC multi-player on dedicated servers, you would have seen the differences in quality between CoD 1 and 2 and MoHAA/BT/PA/AB. When CoD was released, even though it needed a couple of patch updates right out of the box, MoH bit the dust. New game modes, better graphics, better weapons system, better character movements, etc... I can't comment on CoD3, since I skipped it. From what I've heard, according to some old buddy gamers it sucked wind. CoDMW is just lame, every noob gets a machine gun and a nade launcher. CoDWaW isn't bad mulitiplayer, but the maps are small and nobody wants to play Japanese.