To some people this could be the difference between getting these achievements and not getting them. I think you did a great job writing this. You might want to add that on Gateway, in the Snow Zone, there is a little closed in area behind a snow covered doorway with two 25 healths that makes a good hiding spot. Also at the portal when you enter the snow zone, behind it there is an area I don't think the enemy bots would think of looking. So once you get the lead, everyone go hide at one of those places and let the time run out.
I have moved to PC gaming, so I
won't be on Xbox LIVE anymore.