I understand running past the free roam stuff in the beginning but I get pissed when people run past actual strike enemies and just leave them for me. I had a guy stand next to a door when we were killing the three servitors on the Nexus strike, waiting for it to open so he could sprint on through. I understand making tracks in these things is important, but good god is a douche move. If you omit helping your team for expedience then you shouldn't play cooperative games.