As a Battletech lover, the phrase "somewhat of a competitor" is a bit vague. I see Battletech as a 3%er - one of a few 3%ers - compared to the near-monopoly of WH40K (and fantasy WH).

As an aside, I am somewhat disappointed that Battletech's appeal to the mainstream is largely down to the Mechwarrior games which have minimal lore.

There is so much more that could be done. But the current owners seem to be pretty poor at translating all their paperwork stories for the modern crowd.