A topic from AEG's L5R CCG Rules forum, copied for Oracle of the Void from a copy of the forum saved in October 2015, so pages it didn't save are missing. Players' names are left out; the rules officials are named. Rulings are as they stood on these dates; later rulings, the rulebooks and the Rules Archive may differ.
According to this post Zen made http://www.alderac.com/forum/viewtopic.php?t=58805 Naval units should be assigned during infantry, yet I don't see anywhere within the comprehensive rulings or the SE basic rulebook that prevents naval units from assigning during Cavalry Maneuvers (eg. Moto Chagatai exp4 with the Heavenly Kobune of Suitengu attached).
Is there something I missed while reading that prevents Naval Cavalry units from assigning during the Cavalry maneuvers segment?
According to this post Zen made http://www.alderac.com/forum/viewtopic.php?t=58805 Naval units should be assigned during infantry, yet I don't see anywhere within the comprehensive rulings or the SE basic rulebook that prevents naval units from assigning during Cavalry Maneuvers (eg. Moto Chagatai exp4 with the Heavenly Kobune of Suitengu attached).
Is there something I missed while reading that prevents Naval Cavalry units from assigning during the Cavalry maneuvers segment?
That's not really what the original question asked, as far as I can tell.
The default for all cards is Infantry. If it's a Naval card with the Cavalry trait, then yes, it can assign as Cavalry. But the presence of the Naval keyword has nothing to do with that assignment.