1/25 scale military weapons?

At one time Tamiya had a set of 4 figures to go with their 25th scale Tiger, but I haven't seen them in a long time and I don't know if the weapons were add on or molded into the figures. Check with Verlinden and some of the special figure making companies

The company Preiser from Germany makes figures for Railroads. The also have figures and a weapon set in the scale 1:24.

I don't know the number out of my head but maybe this is an option
Mark Jan Heiden

The recently re-released AMT/Ertl Hogn's Heroes Jeep comes with a 105mm recoilless rifle, M2 .50 cal machine gun, a Thompson .45 cal submachine gun and an M1 carbine. Some of them are missing the spare tire, but AMT/Ertl will mail you a 5th wheel. Mine appears to be a pretty nice Jeep.