At the raid near the beginning, after Krycek gets out of the truck and Mulder hits him, Mulder has his weapon and attached flashlight pointing at Krycek who is on the ground. Mulder then lifts his weapon up. It then cuts back to Krycek who still has the flashlight on his face.
After Mulder gets his travel documents for Tunguska, he drives away in the car with Krychek still handcuffed to the steering wheel. It would have been impossible for him to make any turns.
Around 00:22:36, in the reflection of the phone's cab, we can see a blue coat from a crew member on the right.
When examining the rock, Dr Sacks says that other than possibly containing alien bacteria fossils, the meteorite would be worthless. Meteorites are extremely valuable and attract a high price on the collector market.