Pumpkin feels like shit....<br/><br/>Ug...<br/><br/>Well you are on the tenth floor which means 10 stories.  That is 33 meters which means you would be rolling 1d10+20 for damage.  A Space Marine's armor does not apply but their Toughness does which is considerable.  Even if I cut out a couple of stories due to being a Space Marine, there is still a ways to go before even dropping below that damage roll.  Now there is someone with you that has a jump pack and there is more than one stairway.  So if you do not wish to lock yourselves into combat there are ample ways of avoiding this fight.