IIRC the 1201fp is very similar to and made by Benelli, M1 Super 90 . In general parts that are touching and moving should be oiled lightly I'll see if I can find 1201fp drawings.
Midwest Gun Works , 636 475 7300 Customer Service
Beretta, 1200/1201 , Connecting Rod , Part # 26
I couldn't find specific info so just put a drop of oil on the parts that touch .
MGW has lots of parts and also a gunsmithing service for Beretta !