I'd like to see what MWO does with the same chassis, and of course the Stinger.

VLK-QA Valkyrie, a 30 ton IS light favored by House Davion. The Valkyrie has a pretty small selection of variants:
VLK-QA Valkyrie - ML in the right arm, LRM10 in the left torso.
VLK-QF - Flamer in the right arm replaces ML.
VLK-QD - visually the same as the QA, upgraded with level 2 tech.

WSP-1A Wasp, a 20 ton light scout and one of the most common 'mechs in existence (along with the Stinger and Locust). Used by everyone, everywhere. There are a number of Wasp variants to choose from
WSP-1A Wasp - ML in the right arm, SRM2 in the left leg. (IMHO, I like the rifle/vambrace gun over the missing right hand)
WSP-1D - no SRM, twin SL in the left torso, flamer in the left leg.
WSP-1K - no SRM, MG in the left torso. Uparmored.
WSP-1L - no ML, no SRM, SRM4 in the right arm.
WSP-1W - no ML, no SRM, six SL in right arm, right torso, left torso.
WSP-1S (3049) - visually the same loadout as a 1D, but with level 2 tech.
WSP-3W (3050) - visually the same as a 1W, but with level 2 tech and reduced armor.
I'd prefer the Valkyrie had an actual rifle or vambrace gun like the Wasp, but could live with the gun arm.