Offical or field mod?
Certainly not a mod, the plane had points for drop tanks, and points to attach rocket rails. No mods needed. Never seen anything to say it could be done, but I haven't seen anything to prohibit it either.
I think if a plane has tank and rocket points you should be able to use them all, unless it would add too much weight. Seeing as the Typhoon could carry 2 1000lb bombs, I hardly think 2 drop 45 gallon tanks and 4 rockets would weigh too much.
The US planes (Hog Jug and Stang at least) all seperate rocket rails and pylons.
[This message has been edited by Nashwan (edited 12-31-2000).]