[Shogun]

yeah, there is no beta without nda.
and it´s a must. i participated in many closed betas and on half of these games the early closed betas were nothing compared to the released game. and almost every beta sports some evil nasty gamebreaker bugs.
showing stuff like that to the public can really hurt the game.

but you know that our devs are very special, so if the nda doesn´t forbid capturing and saving footage, i see a good chance to get the permission to use certain things.
in other betas i never even tried to ask for things like that.
just make your videos, send them to the devs and ask for permission to post it.
there´s a fair chance you get your permission if the video is good enough and shows no bad bugs or too much unpolished stuff