Posted 09 October 2013 - 09:39 PM
How about weapons that actually existed at the time?
Binary Laser:
An energy weapon which is pretty much just two large lasers strapped together, making it even heavier than PPCs/Large Pulse Lasers. This thing weighs 9 tons, is ridiculously heat-inefficient, and (assuming it gets beam duration like other lasers) will melt you to a pile of molten slag if the entire beam hits the same location. Prototypes were around in the mid 2800s, but only with the re-introduction of double heat sinks does this thing even become close to usable.
Mech Mortars:
A very early technology, although traditionally classified as missile weapons, these things could fill in the gap on the Ballistic lineup (.5 -> 6 tons, currently). They were originally designed as indirect fire weapons, but fell out of use in favor of LRMs. However, with recent advancements with electronic warfare technologies, they have begun to make a comeback, as they don't require locks to fire. Mech mortars come in 4 variants: MM/1, 2, 4, and 8 (weighing 1-8 tons, respectively).
The values and mechanics would likely have to be changed from tabletop values to make these weapons fit with the game, but as they were never overly common weapons, I doubt anyone would mind the numbers getting played with a bit.