Found these just now and wanted to share. The B-25G footage was very interesting- that was a LOT of recoil when the 75mm cannon was fired! Enjoy!
Mike
https://www.youtube.com/watch?v=cEek5IvGYKg
https://www.youtube.com/watch?v=lmyVtoPZ_KI
https://www.youtube.com/watch?v=x7XmzaL2xyU
https://www.youtube.com/watch?v=sSp4RAlm2rc
https://www.youtube.com/watch?v=D5FLZptuMcE