Up to now unfortunately I haven't even had a decent chance yet and I'm still trying out other stategies.
Changed tactics - managed to jump into the water before they teleported over, left them alone and got into the building.2 Skaarj were taken out by my marines before they were killed. Still 100 health.Savegame!
That's that, next difficulty is now getting the powercell but then I can't avoid another of those strong Skaarjtards.
I managed to kill him once, had 4 health left (and I played nearly perfectly) but now... how to get out to get some health near the teleporter with another Skaarj lurking around there. Yup, did it without losing health, but I wasn't happy (Savegame2 just in case).
Thinking to myself, jazz (and testers) really put a lot of thought into the road to take, so much that I can't imagine he expects players to have to kill everything in order to progress, especially since killing is so difficult ... so ... there must be a way to bypass that Skaarj after the powercell (BTW he has 320 health and is damn fast) and YES .... I am not going to give away everything, especially not this one because the solution is so beautiful.
But I really wanted to mention this because brute force alone will have its limits and great pleasure comes when outsmarting the enemy (granted, you might die the first time and the task will seem daunting but just as you are supposed to read the translator messages attentively, also study the surroundings and make use of them).