You break for the nearest maintenance accessway. It's out the office and then down a hall. You could easily defeat any of these fools, but it's much better when you can ambush them from hiding, otherwise you can't plan. You also need to be where Neutron is going to meet you!

RedDwarf and Neutron: Proceed towards the security department. If HeadOfSecurity had the disk, maybe he hid it in his workspace before going to murder you?