does this jog any memories? me and a mate have been racking our brains for years trying to remember what this advert was for! i've posted up on a couple of TV-Ad web sites to no avail - even emailed a couple of the companies who i though it was but neither of them remembered it.

it was a send-up of Aliens - a space marine, called Brad, is cautiously stalking through a spaceship on the lookout for an alien. our POV is split between watching Brad, and then a 1st-person of some alien zooming through these tunnels towards him.
every so often, some chap over an intercom asks him if he "can see it yet?" "Nope."
alien suddenly bears down on him from above. he looks up, drops his weapon, and runs off set shouting "SHHHUUUUURRRE!"
cut to outside of ship, then display of advertised product (unsure what this is, but im thinking Kit Kat, Weetabix, Beer, etc. etc.)
im desperate! can anyone help me??