In modded games, you can edit game_data\configs\creatures\m_stalker.ltx to change generic stalker stats:
Most players aim down sights around corners. The Stalker does not. Because you have the Stalker perk, you can hip-fire with high accuracy. Enter a room, identify Player 71's corner, and only ADS after you have started shooting. This keeps your movement speed high during the initial damage trade. stalker player 71 better