and remember, a hole in an EVA suit can be "fixed" by simply tying a tourniquet above the point of the leak.
To inject a little reality here, the difference in pressure between an EVA suit at Earth Sea Level pressure and vacuum is a little less than half of the difference in pressure between the inside and the outside of a properly-inflated automobile tire. Anything that can stop (or slow) the loss of air from a tire puncture would be adequate for an EVA suit puncture.
As for "fixing" with a tourniquet, if your suit is leaking and the leak can not be stopped, it may be preferable to seal off the leaking section and lose half an arm to the vacuum than to let your entire atmosphere escape and suffocate.
Time to begin my comment o' curiosity. What is that device in front of the player? Do we get to keep the EVA suits? Please say yes. Can we customize the colour scheme of the EVA suits? Will there be an actual Zero-G environment? (I.E. if we kill an enemy he flies of the stations hull etc. I get that the player will be using gravity/magnetic boots like those seen in ST: UC and ST: FC) Will we be able to walk along the docking ring and look at the defiant from the outside (also, can we actually get the defiant placed at the DS9 docking berth when we enter the system?)? Will we be able to see ships flying around the station/at the docking pylons as we walk around the hull? Will we see EVA teams and worker bees working near the base of the upper pylons, like in the opening credits of the series?