Why all the Peace Walker hate? That game was awesome.
Boss battles were designed with co-op in mind and incredibly difficult on your own. Base management was awful in this game, but improved/watered down in TPP making it tolerable there. Story was crap and some characters really didn't need to be there and I still don't remember fully why Snake was in South America to begin with... Sadly it was the precursor to TPP and GZ and introduced the whole "episodic"-aspect of missions into TPP which I hate.
Aside from the mostly terrible gameplay, it also introduced things to TPP which I thought were just awful in both Ike base management and "missions". Though I can't knock PW for some stuff like the variety of side-ops and it's CQC, which TPP totally ripped off and improved upon further. That was fun.
Could you imagine "A Date with Ocelot" or "A Date with Quiet"? That woulda been a nice break from the srs bsns with some much needed giggles. Or even a "ghosts" mission on an FOB or in Africa would have been a nice change of pace.
Oh well. Peace Walker was crap overall, played it on both PSP and Xbox, the game played worse on PSP if you can believe that. I blame the lack of a second analog stick.