I am a long term Rolemaster player, and given the revision of the system (that I'll buy in integrality, you have my word), I'd very much like to give suggestions to little details...
My main point : you should take some D20 system of attack into consideration. In this system, you can make, say, whirlwind slash, on peripherics enemies or triping attack, or disarm attacks... In RM, in the core system (even if that must be expanded in the companions somewhere), you only slash one on one, or at most, give 2 or 3 attacks, but still the same.
You should develop offensive attacks more deeply, not just boost the OB, and let the criticl hit do the rest. If you are, like, Gutts in Berserk with a giant 2Handed Sword and do a whirl wind slash to chop everything around, you should have the means to get to this point and do it
Also, always in the same wave, if you hit to kill, like, with a crossbow from the dark, it should be more possible to try to hit to kill - Even having the possibility to aim at certain body point... Head, neck, or sword bearing hand...
I admire your work, would be awesome to contribute in a small measure myself. Thank You!