I may well be confused, but it looks like MgT2e High Guard may be going along that path, as they have three flavors of Bay weapon:
Small, 1 Hard Point, 50 tons,
Medium, 1 Hard Point, 100 tons, and
Large, 5 Hard Points, 500 tons.
Small, 1 Hard Point, 50 tons,
Medium, 1 Hard Point, 100 tons, and
Large, 5 Hard Points, 500 tons.