I patched Arrowhead to 1.56 yesterday but it messed me up. At first it looked okay, the patch gives us a nice new little map called 'Proving Ground' and some Priv Mil Co units, but after a while it froze up my PC just like patch 1.55 did.
So I had to do yet another uninstall/reinstall and then patch up with the only patch that works for me- 1.54.
So to recap, I'm Arrowhead 1.54 without any addons or mods of any kind and it works fine. At the moment I'm building small simple missions, it's great fun but I'm hampered because the manual is krap and I'm constantly having to ask for advice at the AA forum, sometimes I get an answer, sometimes I don't.
For example I finally got my drone module running, but for some unknown reason when the drone spots the enemy it automatically dives down to attack with Hellfires and crashes into hills instead of staying safely at the fly-in height of 800m.
PS- I invited players at the AA forum to come look at the FGM AA Section and join FGM if they like, let's hope they like what they see..