Man, You did a great job with this mod. I'm playing it and I am amazed.
Though I have few suggestions. Maybe you can edit somehow periscope to be a command view from which player can shoot from all guns at the same time. Also I noticed that I can control only one cannon (maybe SH3 stock bug?)
Maybe you can somehow put crosshair on anti-aircraft cannons?
Nevertheless this is one helluva mod worth of playing.
Keep up a good work!!!