Trying to figure out a name of a animated movie I saw?

I watched this one animated movie about 4 years ago and I can't remember what it was called but i do remember it was about this group of soldiers who were fighting monsters or vampires can't really remember any way they were getting killed but then this one bounty hunter I think is what he was comes and saves them and he's a vampire or something after that they don't trust him because they know what he is but he stays with them because they were both after the same thing I think its also pretty gory if that helps. that's just about what I remember about the movie sorry that its not allot to go on but I figured I might as well ask here and see if anyone can tell me the movie im thinking of I think its hellsing but Im not so sure