We didn't look much at gear while doing character creation the other day, but preping for making some Support Specialists has got my thinking. By my reading of the rules, Specialist Kit is in addition to Regimental Standard Kit, meaning the characters gain the Regimental main weapon as well as their specialist weapons. For most of the Guardsman Specialists, this is fine… you get a lasgun. For Weapon Specialists, it's a little odd… because you get a lasgun and another basic weapon, possibly another lasgun. For Sergeants, you get a laspistol, chainsword and a lasgun (which is a little odd). It gets even weirder for support specialists… with Storm Troopers and Ogryn being issued a lasgun along with their specialist weapons.
It occured to me that an easy fix would be to mark some of the specialists weapons as Main Weapon, replacing the standard issue lasgun. So the Weapon Specialists basic weapon, the Sergeants laspistol, the Commissar's bolt pistol, the Ogryn's ripper gun, the Ratlings long las/sniper rifle and the Storm Troopers hot-shot lasgun all become Main Weapons.