I try to clear all the nearest red dot spiders first before I take out the overwatches. I have been hit numerous times by the overwatches and they are free repair. Sometimes one of the moving red dot spiders near the bottom behind that line of scrimmage will hit me but I’ve started to bring in my Z277s to take out red spider on the bottom left. The real problem I have and where I do take a few minutes damage (6 or 7 minutes) is the four moving blue spiders in the circle in the bottom. Sometimes the clones from the Demi can take them out without damage, but other times it doesn’t work. But once you figure it out, the event is really easy, but time consuming.

I get free repair on map every time. By my own way and it's quicker.