Die Hard 2
Barnes listens to McClane's story. Because Stuart's men showed up so fast, Barnes thinks that they must be close by.  They find the church where they are basing their operations and send in the Army Special Forces out there to fight. During the gun battle, McClane sees that Stuart's men are escaping on snowmobiles.  He shoots one guy with a gun that he stole, takes his mobile, and chases after them. However his gun does not work and his mobile gets shot and he falls down. He opens his gun and finds that there were rubber bullets in there.  He realizes that Stuart and the special forces are working together.