I just had a look through Havoc 7. My original 100% solution uses the following skills:
Left Side: 10 climbers, 3 builders, 1 basher, 2 miners, & 1 digger
Right Side: 1 blocker, 7 builders, 1 basher, & 1 digger
Obviously, this is less efficient than Proxima's solution because it uses an extra blocker that he doesn't use. However, I was able to remove the digger from the right side by placing the blocker on a build brick and carefully releasing him with a basher without destroying the bridge.
With the digger gone from the right side, it can be used on the left side instead of a miner. Alternatively, it can be used in such a way that the left crowd can climb out of their holding cell instead of using a builder. The extra builder can then be used by the exit to save a climber. Unfortunately, since the crowd needs to be released with climbers under this method, 9 climbers are still required.
So the result for Havoc 7 is now down to 9 climbers, 9 builders, 2 bashers, 1 miner, and 1 digger. As far as I can tell, the minimum skills result for the other thread is stlll 26.