These two weapons are most likely going to be extremely lame considering all of the people who unlocked them. I just don't see the effort into making them unique when they're going to be common for everyone who played ROTW.
That's a shame too. Hopefully the game itself has some stellar weapons that we haven't seen and can unlock. It always seems like any pre-order bonus weapons or special unlock weapons in every game released always pale in comparison to standard weapons earned in-game across all genres.