Gerit's 'Squire' light mech is an exotic design, built around an array of powerful thrusters allowing for sustained flight. In Gerit itself, they're often used as scouts for more substantial forces, however outside, they're used for all manner of vicious strike actions by mercenaries.
Gerit itself is widely considered a backwater - like New Wheel, they were one of the first to develop high-performance light mechs as a countermeasure to the previously-thought indestructible heavy mechs various warlords had acquired post-devastation. Unlike New Wheel, this defeat of the warlords led not to any unification, but a different breed of warlords at the head of hosts of light, vicious machines, on the move constantly and devouring everything in their path like locusts.
This stunted the redevelopment on the already borderline-habitable planet of Gerit, and stopped them being able to return to the stars in a meaningful capacity. Instead, they now rely on a cartel of space pirates to ferry anything off-world and out of system, usually at a steep premium. If one wants to leave the system for good, one of the only avenues out is the payment that comes with high-risk mercenary work.