Ki-45 gunsight for slanted guns

[Treetop64]

Originally Posted by EJGr.Ost_Caspar

Really??? You need to be told to look upward if you want to look through something that is clearly above you?

In fairness, Caspar, that misses the point.
Obviously, one wouldn't have to be told to look up if they were physically in the aircraft. However, in a video game where even the simplest actions require specific keystrokes or button presses, it's always a good idea to include instructions, and not just assume that others will automatically know what to do.