Most of the issues that plagued that game though have been resolved over time. Like I said, at the time this was fantastic and because we didn't have anything quite like it or know 'differently' this was rightly the best FPS game of that era. What I find 'funny' is that people complain about map size, yet CoD4 (as well as future games) had some massive maps - Maps like Bloc, Overgrown, Ambush, Bog, Crossfire, Pipeline etc - It also had one of the smallest in Shipment but overall the majority were on the large size - even its DLC pack had large maps in general (Creek, Broadcast and Chinatown with Killhouse being the only 'small' map. Some perks for example were 'crutch' perks (Stopping power!) - every class basically had to have these equipped and there was of course more 'balancing' issues than modern CoD's - the M16 for example was a 'beast'. It wasn't without its faults, things we wouldn't accept from a CoD game today but because it was 'new' we accepted these far easier. Compared to what had come before it, this changed everything. The campaign was certainly great and the whole game changed the gaming landscape.

Cod 4 modern warfare glitches