You’re a sniper on the red team. Zoomed in, and ready for your fifth head-shot in a row. Suddenly, your view is totally blurred by a blue haze, and before you can zoom out to actually see the bad guy standing in front of you, his flak cannon has already blown to pieces.
I guess this happened to everybody at some point. With this mod, problems like these are gone. Your sniper rifle will have a display with a nice zoomed-in view: the External Sniper Display (ESD). I saw this in a demo of the game BattleZone, and then I knew I had found a theme for a great mod.