Valve Cut Content Wiki Twitterren: "What's your favourite piece of beta content that flies under the radar? Here are 2 tidbits that you might not have known! 1:The concept on the left
Solveig Møster - HL2 Scanner Drone
Half-Life 2 City Scanner - Download Free 3D model by ChildeRoland (@ChildeRoland) [ab06418]
npc_cscanner - Valve Developer Community
Half-Life : Legacy - Wasteland Scanner by skwallie on DeviantArt