"Officers wear ceremonial sword"
I looked through my sprues, and there is no such thing...
So I decided I had to build some myself. As base I used the Cadian banner bearer and cut the sheath out of plasticard, and I used the handles of the larger Cadian knifes for the swords. The centered handles of the smaller knifes don't work - at least they don't look any good.
For the hand guard I cut plasticard rings in half
May need a bit less than half of the ring, but you get the idea.