Warbringer
Explorer
I'd argue that it depends on your wargame. And that Warmahordes is a much better wargame than Warhammer Fantasy Battle.
Meh

I'd argue that it depends on your wargame. And that Warmahordes is a much better wargame than Warhammer Fantasy Battle.
Everybody, starting with Mearls, agree the "math" is a bit off. But not that much : according to the latest playtest, a lvl 3 Rogue with expertise in Acrobatics and 16 Dex has +2+5+3=+10 on any Dexterity (Acrobatics) check, which is enough to casually (taking 10) overcome DC 20 challenges. I do think mundane tightrope walking is definitely a DC 20 task (not DC 25, I agree with you), so the system is not as broken as you say... I am OK with non-specialist having only the slightest chance of succeeding this kind of task.That's worth bringing up but misses half the point. The half point it misses is that taking ten for a thief acrobat leaves you in the 15-20 range aiming at DC25. (Or did. They stripped that as an example out of the latest playtest packet and left almost no guidance). When taking ten leads to a miss by five or more on something that should be routine and that you can't take 20 on we have a problem.