Can't find info on units

[Montana Grizz]

I've noticed that in very late scenario's and especially custom scenario's that I cannot locate weapons data via the games drop-down menu. The unit is simply not listed?

Examples:

T1E3 Aunt Jemima
Super Pershing
Tank Hunter squad. - how effective is this out to what range.
Sniper section.

Many others are just not listed. Although I may have a general idea of the effectiveness of a given unit, it is sometimes imperative to know the effectiveness at each hex distance for placement or concealment purposes.

Also: How do you use a Storch Reese (spotter plane)? Can you fly it to a particular hex and then garner visibility depending upon it's path of flight? Unless the plane is shot down, can you use it over and over again?

Any assistance, is as always, appreciated.

Pat