Alternate configurations that could be in MWO for the mechs i listed, and their hardpoints/equipment, check notes section for my analysis for the configs likely used in MWO:
-Gargoyle (80t): Prime (LA/RA: 1M, 1B, CT: 1E), A (LA: 4E, RA: 1E), B (LA: 2M, RA: 1B). Notes: Has XL400 so the speed is 81 kph. Merely 11 tons of armor. 21.5 tons of pod space. No other possible configs at this time.
-Mad Dog (60t): Prime (LA/RA: 2E, LT/RT: 1M), A (LA: 1B, RA: 1E, LT/RT: 3M), B (LA: 2E, RA: 3E, LT: 1M, RT: 2M), C (LA/RA: 1B). Notes: 81 kph, 8.5 tons of armor. 28 tons of pod space. Strictly speaking B is also possible but i reckon they will use A to allow a true Clan heavy missile-boat, and C because it is... elegant (by default, 2 Gauss Rifles with 4 tons of ammo). Of course it is possible they will got with B and C, or A and B and offer C right arm.
-Mist Lynx (25t): Prime (LA: 1M, RA: 1M, 2B), B (LA: 1E, RA: 1M, 1E), C (LA: 1ECM, 1AMS, RA: 2E), D (LA: 1B, RA: 2E). . Notes: 113 kph, has fixed Active Probe in the head, 6 fixed Jump Jets. 3.5 tons of armor. 7.5t pod space. I'm assuming they will use C because that gives the Clans another ECM mech. Both B and D are possible, i won't guess which one. Alternatively both B and D are used and the C isn't used as not to usurp the Kit Fox's place as ECM carrier given the Mist Lynx's faster speed.
For the medium mech, both are possible as i outlined in my previous post, so i list both here.
-Ice Ferret (45t): Prime (LA: 2E, RA: 1M), A (CT: 1E, LA: 1B, RA: 1E, 1AMS), B (CT: 1E, LA: 1E, 1M, RA: 1M), C (CT: 1E, LA/RA: 1M, LT: 1M ) D (CT: 1E, LA: 1E, 1AMS, RA: 1E). Notes: The only humanoid Clan-medium. XL360 giving it almost 130 kph (no 45t medium in MWO can mount such an engine so the actual speed may be lower due to MWO's engine scaling). 7.5t armor. 9.5t pod space. C has Artemis IV by default. No idea which two are used beyond the Prime.
Viper (40t): Prime (LA: 1M, LT: 1AMS , RA: 2E, RT: 2B), A (LA: 1M, LT: 2E, RA: 1E, RT: 2E), B (LA: 1E, LT: 1E, RA: 1E, RT 1E
, C (CT: 1E, LA: 2E, LT: 2B, RA: 2E, RT: 2B), D (LA: 1M, LT: 1E, RA: 2E, RT: 1M). Notes: 130 kph (as fast as Cicada by default). 8 fixed Jump Jets. 7 tons of armor. 8.5t pod space. A has Artemis IV by default. Can't guess which configs might be used.