SA80's are used by the British Army team during the training exercise at the start of the film, with military blank adapters and SUSAT sights attached. They are later ditched when the team discover the dead Special Ops team, as they would be useless against a real threat.
The Browning Hi-Power is used many times throughout the film, first by Captain Ryan (Liam Cunningham) during Private Coopers (Kevin McKidd) Special Ops training, then by Sgt. Wells (Sean Pertwee) during the attack on the farmhouse, and finally by Pvt. Cooper to kill Ryan in his werewolf form.
On an interesting note, during Cooper's training, Ryan's Browning doesn't have a magazine in the gun yet he manages to chamber a round then shoot a dog in the head and not have the slide lock back.
If there's no mag in the gun, then of course the slide won't lock back. The magazine has to be in the gun for that to happen. -MT2008
The Heckler & Koch MP5A2 is first seen during Pvt Coopers Special Ops training and are later taken from the Special Forces camp. All are seen with a Surefire light and at least one has some kind of scope or laser sighting mounted on it.
A Heckler & Koch G3A3 is another weapon taken from the Special Forces camp and used by Private "Spoon" Witherspoon (Darren Morfitt) and then by Private Terry Milburn (Leslie Simpson) after swapping his MP5A2 for it. After Terry is taken and killed by the werewolves this weapon is not seen again throughout the rest of the film, although he was not shown holding it when taken. The rifle used in the movie had difficulty handling blanks and the bolt had to be manually cycled occasionally. It seems the flash hider was removes from the gun.
A Mossberg 500 shotgun is taken from the Special Ops camp and is used by Pvt. Joe Kirkley (Chris Robson) throughout the farmhouse attack and escape from the forest. Many times throughout the film it is shown firing way more rounds than the real gun can hold (in the typical action movie style).
Used by the team against the werewolves. They are not seen taken from the Special Forces camp, so it's possible they could have been taken with the team for the training exercise. Help identifying the kind of grenade used would be greatly appreciated.
