Got me, Dersham.

The correct line is...

"...Give Pinky a weapon and a couple of ST grenades. Nothing can get through that door and to the Arc..."

From what I gathered in the movie, they sounded like the equivalent of a thermal detonator.

I have no idea what an ST grenade is. I've used smoke, fragmentation, High explosive and phospherous.

An army term I haven't seen is RDF - Rapid Deployment Force

The URL is a site that has military acronyms and abbreviations;

http://www.globemaster.de/regabbre.html

That is the truth! Even when I was in, I don't remember using all that many acronyms except when I was on the radio in the field. Conversations were pretty normal except for very basic acronyms/abbreviations.