Ambush skill

[jowe01]

In my understanding, the Ambush value of a character should equal

+ His skill rank in Ambush (i.e. the number of "crosses" he has done on Ambush
PLUS
+ His profession bonus (also called "Level Bonus")

I have a Thief Lvl 2 who has rank 3 in Ambush. If my understanding is correct, he should have a total Ambush Skill of 9:
3 from his skill rank + 6 = (3/lvl x 2 levels) because Ambush is a Subterfuge skill, and Thieves have +3/lvl on Subterfuge skills.

However, FG only gives my thief a skill bonus of 5, 3 from the rank, and 2 from level.

Does anybody understand why it is like this? Bug or WAD?

[Grimbold11]

Ambush is one of the skills that breaks the rules. If the thief has 3 ranks in Ambush, he gets to modify the crit roll by up to 3 and no more than 3. His profession bonus adds to the Ambush bonus but since Rolemaster doesn't use that bonus for anything, it's technically just wasted. No one will ever ask you to make an "ambush" roll.

[jowe01]

Thanks a lot for the answer! Clear now.