Im one of the lead guys at the mechanics. I logged in & was told we are being attack because we were inbetween two groups firefighting. I didnt catch who was attacking who, but at the time of logging in things were pretty quiet. After 5 minutes of gun silence we were fired upon from the building opposite the garage, resulting in a couple casualties & a few more wounded. I kept my head down the whole time trying to understand what was really going on. Later on nearing the end of the firefight a guy peered into a gap in a wall of the garage & began firing an assualt rifle into the garage. From what it looked like he was firing in the direction of the garages current residents. Since I wasent clear on what was happening, I fired a single shot into the guys chest attempting to force him to retreat, which he did. After that the mechanics & attacking group resolved the fight by both sides ceasing fire.