@@prestondeloli7008 You actually can, you can grapple on top of those two guards to gain access to the gassed room. Just did it and was able to get prometheus' character bio.
no you can you have to go back after you complete the story go to the guards there and look up there you will see a ceiling that you can grapple up to the zipline to the other side and with remote control device hack it and it will activate a air vent that will clear the gas and then you can go inside