It sounds to me like its gonna be a fun gametype... if I understand right your team will be in a fort under assault by gobs and gobs of bots and we get to mow them down with all sorts of mass destruction... Something about it reminds me of old arcade top-down shooters I think its going to be a fun play.
here be a preview... http://mutation.unrealism.com/reviews/daprev.shtml
here be a preview... http://mutation.unrealism.com/reviews/daprev.shtml