Corporate HVAC systems detect the gunpowder in traditional firearms instantly, making them useless during infiltrations. Plasma weapons may have limited ammo and a high credit cost, but at least they don't broadcast your position to the entire facility when you take them out of your pocket.
Originally developed as a sidearm for government troops during the Resource Wars, the Hand Cannon has found a second life in the black markets of the post-government age.
A Hand Cannon is an upgraded version of a Plasma Gun, with an increased ammo capacity of 3. Reloading it with a Charge Pack restores its full ammo capacity. Hand Cannons can be bought from some Nanofabricators for 900 credits; additionally, Archive Shalem 11 starts with one.