Two men were arrested on gun charges after a SWAT raid in Nashua. Just after midnight Tuesday, a Nashua police officer saw a driver he knew --  Scott Collier, 39 -- whom he knew had an outstanding arrest warrant for failing to appear in court. A short while later on Hampshire Drive, just off Route 101A, other officers found the car the first officer said Collier had been driving. Police met another man near the car parked at 1 Hampshire Drive who was wearing a hat and face mask.  Officers said he looked like Collier, but they were unsure it was him. Another man got out of the car and bolted, police said. Â