just tried this. on silver (a- i can't stand gold pugs and b- i was a little dubious)
my god. it's powerful. did plenty of BEs - used my gun on guardians. oddly, when the phantoms came out - it was heavy melee time --- two hits, and they were indeed dead (this was before the martial artists even kicked in...)
Atlases would get warp -> heavy M -> Shockwave -> heavy M -> repeat, and died VERY fast.
I could have sworn my punch set off a BE - but i must have been imagining things (the phoenix adept hit it maybe?)
This punch staggers, does huge damage, and has a wide cone. can't explain where the damage all comes from - but it's there in spades.
a silver centurion is reduced to a single bar of health with one punch - and i'm pretty sure that was before the martial artist kicked in.....
Important to note - i was not using any strength boosts. only 1 gear, martial biotic amp II -- so only 5% bonus to melee.... also assault rifle omni blade IV so 22.5% there.
It's really really squishy - i died practically every wave - but i seemed to have understanding teammates. Though deaths usually came at the end of waves as a result of cumulative damage accrued throughout said wave..... in the meantime, top scoring in game even with phoenix adept and destroyer w/ typhoon in same game.
there's one side problem that nobody has mentioned. as soon as i started meleeing everything - two of my teammates (a batarian and the aforementioned phoenix) got it into their heads they were goign to do a melee game too. this lead to both of them dying early in every wave. That phoonstroyer, bless his heart, carried that match through a lot of waves ..... it pretty much went like this. batarian dies in the first couple of minutes. phoenix dies but closer to me and i revive him -- i die occasionally he revives me... eventually he bleeds out... and then eventually near the end of the wave i bleed out. then phoonstroyer finishes off the last couple of enemies. We did make extraction though. it went fairly well
*IF* i was to take this gal into gold, it would be with (A) the strength boost for quick kills... and (

a cyclonic mod III or IV ..... to mitigate some of the squishiness.