I know, hense why I thought the Praevian would be interesting. Having to fight on despite having a broken body, no Automata to back him up and most of his prosthesis falling to pieces. I mean, I get it. Space Marines are absolutely horrifying. I play Dark Heresy, the system where a Scout Marine is tough enough to be a boss and a standard Tactical is big enough to be the final boss. 10 Space Marines, even under-equipped, under-supplied and half-wounded are still enough to take on most planetary defence forces.
So, would a Word Bearers Devastator with a Volkite Culverine or Autocannon be alright?