I second this, WW_AICOVER and TPW_Mods are great, I also use FFIS 1.4 (modified by sttosin) which makes AI use smokes and LMGs for supressive fire, generally just gives them a sense of self preservation. TPW_mods also makes enemies react more to getting shot, they can get knocked down etc. And from my experience when playing with these I have not encountered any errors.