Very Easy Trophy - can be done solo.
Go to Spies vs Mercs, select a private game with the type being Uplink Control. Enter the game and capture a control point. It will just be you in the game, so don't worry about hiding from enemies or anything like that.
After the control point is captured the trophy should pop. Then you can wait for however long the match is, or quit back to the lobby.
Questions, corrections and neg vote justifications below.