Yikes. The more I hear, the more I'm actually adverse to the system. Realism is not something I see as a positive attribtue, nor am I good at math on my feet (as Cirex pointed out using calculators just to speed things up!?).
The process sounds fairly labored, with several steps just to resolve a single action.
It's a matter of getting used to it, but obviously it isn't as fast as D&D (I roll a 18, plus my +7, total 25, do I hit? Yes -> Damage. No -> Next.) but it has its own charm, especially with critical strikes.
I think that, at the very end, each player had a copy of his own weapon chart, to speed things up.
A typical round would be :
-Roll d100. 96-00, roll again and plus to the result. The result of the roll plus your offensive bonus.
-The total minus the defensive bonus of the rival.
-Check the appropiate chart for the weapon, in example, broad sword. Compare the result it to the armor type (0 was cloth, 20 was plate, something like that). From here, three different options :
*Nothing. Just no damage.
*Just numerical damage. Normal HP loss. Heavy armors are very easy to hit and get numerical damage, while light armors receive critical strikes from any blow, but harder to hit.
*Damage & critical damage. The critical can be A, B, C, D or E. A is a "weak" critical, an E, a dangerous one. The critical is then bludgeoning, slashing, cold, fire, etc..
-Roll another d100 to see the outcome of the critical.
-Then check the appropiated chart depending the kind of critical, compare to the result and the A-E level of critical.
Your typical critical result is extra damage, extra damage and bleeding, etc.
Then it gradually gets worse, with strong penalizers that last many turns (or till cured) and mutilations, bleedings to death (you can't prevent those) or instant death.
"A" criticals get nasty from 95+ or so, while "E" criticals are nasty from 60+.
A "66" is always special (and nasty).
So, while it's possible to be beheaded by a random orc, you can make a Balrog bleed to death. Been there, done that
It's slow, but exciting, because your character can die at any moment. Still, after 2-3 years of gaming, I only lost two characters. One, by a trap (we all died), and the other, I sacrificed myself in order to gain some time for another character to set up the ultimate attack to defeat the enemy. One friend (Half-elf thief) got his leg amputated by some orc.
Ah, I'm not sure if all this was talked about above, didn't read every post, so sorry, I mislead myself into writing this
This is the old RM, because I know that the edition they released later was very simplified.
EDIT : I forgot, 01-04 is a critical failure. They have their own chart. You can DIE from them. Two glorious moments I remember :
-One of the allied NPCs slashing his own ear with a critical failure while shooting with a bow. It's something that really hurt us, but it was damn hilarious.
-One "friend", he cheated a lot, but karma was there to help us. His character had just died, so he made some Noldor fighter, with 100 in all physical attributes and stuff like that. He tried to attack me because I ignored his plea to join our group. He had a critical failure in the riding skill, fell to the ground, broke his back and ended in a permanent coma state. We didn't laugh. Then he left. THEN WE LAUGHED!