Thanks, yeah, those weapons are absolutely necessary! In this game I couldn't get one of the cybercannons because I recruited the Cultist Monk of Stokke Hills instead of killing him . . . I've recruited him twice, now it'll always seem a shame to kill him after he served so well.
Oh man! I just found out you can recruit the Cultist Monk and get the Cyber Cannon -- I think I never decrypted the message before recruiting him before. Nice!