User blog comment:Antares2/Artistic Vision?/@comment-24174486-20120816174241/@comment-1786741-20120816183526

To be fair, ME2 did have a bit more enemy ant tactic variety compared to ME3, though individual enemy AI was more complex. You had the walking bomb Abomination, gun with legs Scion, flying bug thing Praetorian, possesable Collectors, flying gunship, various techs and biotics, pyro-carrying vorcha, giant Robots, regular sized robots, dog robots, about the same amount of variety of Geth, exploding klixen, and the giant thresher maw. Looking back on it now, ME2 had about the same unique enemy variety, maybe even more.