Some of Strucker's henchmen carry Beretta 92FS pistols - 9mm. Notably in one scene, a henchman on the roof carries a Beretta 92FS until he bursts onto the roof, then he is carrying a Heckler & Koch USP pistol, but the gun changes back to a Beretta 92FS when he fights with Kar (Seann William Scott).
Heckler & Koch USP Compact
One of Strucker's henchman's gun changes to a Heckler & Koch USP Compact on the roof (which is a continuity error, see above).
Desert Eagle Mark I
Strucker's henchmen use IMI Desert Eagle Mark I .357 Magnum pistols against the monk, who famously gets hold of them and uses them to shoot the guns from killers hands.
SIG-Sauer P226
Strucker's henchmen also used SIG-Sauer P226 pistols - 9mm.
Glock 19
Strucker's henchmen also used Glock 19 compact pistols - 9mm.
Luger P08
A Luger P08 is carried by Strucker (Karel Roden) during the World War Two sequences, when Strucker is an active duty Waffen SS Gebirgsjäger Standartenführer ("SS Mountain Infantry Colonel").
MP40s are carried and used by the Waffen SS Gebirgsjäger troops during the World War Two era sequence at the Buddhist temple.
GE M134 Minigun
Strucker's men assault the Monk's building with a Helicopter sporting a GE M134 Minigun. Instead of an 'acetylene' fake minigun that has been used in other movies, this is a real GE M134 minigun, as evidenced by the loads of spent brass and belt segments flowing out of the sides.
Tranquilizer Dart Gun
Nina Strucker (Victoria Smurfit) uses a modified Paintball gun to fire a Tranquilizer dart at the monk.
Flash Bang Grenade
Strucker's assault team uses a modified Flash Bang Grenade to attack Jade's house.