So far, except for giving up on the Untouchable stuff and trying MVm on AoLT(HNTR) - again -, there have been some successes to report. This time I lasted well into Hell's Arena (at depth 3) without getting hit: I was running out of ammo and thus limiting my radarshooting, stepping out of cover in full view of a caco. I was fortunate enough to find a duelist armor on dlev4 (+15% movement) and made tac boots after the CC, which really helps with both the Rolling Retreat and being a MVm. The Anomaly would have been a pain in the ass (no phase to be found on Phobos) if not for a lucky Zerk pack a couple of steps from the stairs, and the only blow I took in the Armory was because I decided to take on the Shambler with my (b-modded) chainsaw. As long as I'm still using the shotgun and do my scouting, I'm not taking that many hits.
The reason I gave up on the Untouchables: I gave it 3 tries, and every dlev2 put me in this situation [WARNING: I don't play the console version, so I don't know if this is entirely correct]:
Turn 1:
..
...
....
....
###/###
....@..
#######
Turn 2:
......
........
.....h..
.......
###@###
.......
#######
And there goes about 25% of my Untouchable Cross. No audible clues, no room to maneuver, just a face full of shrapnel. I think patience would simply be the key, since it can't take too many turns for sarge to either show his face or whisper hoarse seductions in my ear. It's easy to forget patience though.