I think it would help us to help you if you posted the exact name of the level and posted a screenshot of where you are experiencing the problem

I won't be able to get a picture until end of week.

However the level (Cabalco Offices) I'm asking about is the one immediately following the third visit to Cabalco Enterprises (which is just after you return from R&D with the new weapon).

The problem is at the beginning when you exit the lift, at the start of the level. the only other exists from this area appear to be the two sets of double doors (as originally stated). Neither will open, there is no key to be found and you cannot blast them. I have blasted every section of wall to no avail.

There is a triple open skylight above the desk area, where I can see a power up or armour, but no way to get up there.

I'm wondering if I missed collecting a key in a previous area.

Cheers

I remember I got stuck at the same place when I replayed Blood 2 after I got it from GOG. Actually, the doors in the hall to the left of the elevator do open, but you have to stay at some distance from them when clicking the Use key, since the doors open in your direction.

Ah. I think I remember this. You have to go through the offices and destroy everything looking for a key. It's kind of a pain, but the key is there somewhere.

That was it.

Thanks Termit.