I disagree, this is an excellent encounter that tests your battle tactic, at least the first time. I was surprised and happy to see three waves, and the most damage they do is when they die. I would only give them a better starting position when they appear, sometimes they are so far you can pick them apart one by one before they reach you.
Of course once you know what to expect, this battle is so trivial to be boring (but this is OK, in every game learning is most of the fun). There are surfaces and barrels of oil everywhere. I have one it 'solo'. Even if you don't have ranged characters, you must have invested in some skills and grenades, don't you? Grade: 9/10.
