3 Engineers?

I would have agree but I think this in shot, He might be trying to escape of bring the cargo ship to earth with the eggs or something sinister...also, the Prometheus has a large crew which IMDB has not listed..we just know of the main actors and supporting guys but there seems to be more people on this crew...as we see when they are scanning the SJ helmet....somehow, some of these people get mutated or killed obviously... but as for the Biomech-humanoids....we will see more perhaps but in this shot...the ill fated driver of the infamous ship...who has a chestburster of some kind get out of him, being infected by his own weapon...

and of course we are not sure hes an engineer .. we yet dont know ....can be a bot , a mercenary , a mutant , whatever