Let's see...
BJ-2: Sure, no new tech, timeline's fine. Only pause is SRM 24 builds, but other mechs can do that already.
CPLT-C3: Arrow IV artillery, unlikely.
Mist Lynx E: ATMs, unlikely given switchable ammo issues.
Kit Fox G: Don't see an issue. Heck, this resembles the baseline version in MW4.
Nova G:
Not in MUL or Sarna. Based on MUL, looks to be non-canon. I'd say unlikely.
Stormcrow E: ATMs again.
Mad Dog D: ATMs again.
Hellbringer F: That's not the F config. The F has an LBX 10 and ERML in each arm, an ERML in both side torsos and an SRM 6 in the RT. The actual F config? Sure, no problem.
Summoner F: No problem in the tech.
Warhawk D: ATMs again.
Dire Wolf C: ATMs and a one-shot SSRM4. Unlikely for a while.
As for remaining Clan Omnis...
Lights
20 - Fire Moth (Dasher) (2874) - Unlikely. So stupid fast it'd break the game engine with MASC active.
Mediums
40 -
Battle Cobra (2873) Standard Engine.
40 -
Viper (Dragonfly) (2940)
40 -
Phantom (3052)
40 -
Pouncer (3050)
40 - Coyotl (2854) - Notably not in production at all, not even spare parts, and only Prime & A configs existed.
45 -
Mongrel (Grendel) (3053)
50 -
Huntsman (Nobori-nin) (3048)
55 -
Black Lanner (3052)
55 -
Stooping Hawk (2900) Standard Engine.
Heavy
60 - Lupus (2857) Second line. Basis for Mad Dog. Based on Archer and Bombardier. Standard Engine.
65 -
Crossbow (2870) Based on the old Age of War Crossbow. Rare. Standard Engine.
65 -
Linebacker (3052) Designed to be faster replacement for Timber Wolf.
75 -
Night Gyr (3052)
75 - Woodsman (2866) Direct predecessor of the Timber Wolf, Gargoyle, and Naga. Only Prime and A. No longer in service. Standard Engine.
Assault
80 - Naga (2945) Unlikely, due to fixed Arrow IV launchers. Rare.
90 -
Kingfisher (2887) Fills tonnage hole. Standard engine.
95 - Turkina (3052) No codified alt configs until 3058.
-edit- An idea: a "Firsts" Pack.
Would contain the
Raptor (First IS omni), Coyotl (First Omni), and
Mackie (First BattleMech).
Not sure on the heavy.
Edited by Lugin, 22 May 2015 - 11:41 AM.