I would love to kill everything on the way. Problem is, when we drop in to the combat zone, my two other teammates (randoms) will immediately jump on their Sparrows (as you described), and blow past everything. It's frustrating, but if I stick behind to kill shit, by the time I get to the boss; I get maybe two shots in before it dies. If I get there in time at all. I understand Strike speed runs, I do; but do that with your own friends where the three of you can decide that that's how you're gonna play the Strike. Just kill them all. It takes a bit more time, but it's so much more worth it when those sexy blues and purples drop.