Isn't it great when that happens? It's no big deal, just a _______, OH GOD I FORGOT ABOUT THAT VERSION!
Hey when I came back to the game I got MegaMek and just started playing a star of my clan favorites versus random IS companies. Started at equal BV2 then 150% etc.
I had a lot of those moments. Hello Rifleman meet my Night Gyr prime! Wait, he fired what at me? A RAC5... oh 2 RAC5's, dang! Um, why is there a pile of parts where my Night Gyr was... Ooooh, crap.
That and one of the newer IS quads (I don't know which one, too many dang mechs) that killed a Mad Dog and Summoner in pretty short order. It finally died when my Executioner (which it also chewed on pretty good) Alpha'd it to death at 4 or 5 hexes.
I like when bad mechs get good updates. Good enough to become very useable but not impress enough to attract attention.