MediantSamuel
Arcane
I'm playing hardcore - and I noticed that when I was carrying a explosive barrel from one loading zone to another it changed to a normal metal barrel. Hardcore is an extremely challenging mode - I don't recommend it for 99% of the players out there. I'm yet to see a YouTube walk-through on the net, so I'm wondering if it has been completed successfully...I cant even get out of the cell area after been captured.
In the cell area you just need to sneak out, grab the melee weapon off the desk and then go inside one of the closer cells. The code is in the datacube next to the weapon.
Wait for the guard to walk past and then walk up behind him for the ol' one shot to the back of the head.
I'm currently leaving VersaLife level 2 on Hardcore and the worst bits for me have been both NSF warehouses.