Quote:
Originally Posted by thegrindre
What's the difference between the two scopes? I haven't found any, myself.

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Depends on whether it's stock or a mod. The main difference is the Observation scope has a greater range of motion. Meaning, it can look almost straight up.....although not quite. The upward movement is greater than the Attack scope. Both have the same magnification, and Field of View (FoV). Some mods change the lens brightness, to have the Observation scope appear brighter during night operations. If a mod enabled it, the SST (Radar Transmitter) is housed in the Observation scope. It becomes available later in the war. The idea is for a sub to raise the Obs scope while at periscope depth and have the radar screen show what's out there. It's been a while since I looked at it but the game doesn't really have this capability. The Dev's never got around to implementing this feature, although it's modeled. So are Radar Covers for the Radar sets. They were to be used over the units between the start time of the game Dec. 1941 and mid 1942 when most Radar units become available for upgrades. They were never properly implemented either.
Historically, the Observation scope was used to look for planes before surfacing. It was also considered a backup if something went wrong with the Attack scope. Although its not rendered in-game, periscopes were known to fog on occasions, leak too. A sub having a second eye to the world is just as important as it is to us.