1) they can't compete in the current meta (low hard points)
2) near guaranteed PSR drains
If they have ECM, that may allow them to see the field. Maybe.
Honestly, that sucks. But there is no way some of my light mechs can realistically do much. They simply don't have the weapon slots to compete against the new mechs. I don't care if they are micro lasers...when you have 12 of them, they are going to slag my ML and 2MG locust.

The low weapon count means it is hard to get damage numbers up. Low damage numbers means an almost guaranteed loss of PSR even on a win.
Or is the best option to sell those mechs, free up mech slots, and just start buying mechs that fit the meta?