There's been a fresh addition to Empire's MUL (most likely due to new KS boxes but no complaints here)
Von Luckner tank (VNL-K65N-Vanilla) is available starting from Jihad era. Tracks nicely with the lore since it was one of SLDF "old faithfuls" that would be used to jumpstart local arms production in Imperio during the early years. Castilians and Umayyads already had almost all components in production at that point, all Scorpions had to do was to pull the blueprints from archives, email them to some of those factories they spruced up when they took over and watch brand new Von Luckners roll off the assembly lines.
And it's nice how it contrasts with entry for Patton tank which only shows up in Dark Age (AKA after the Crusade). It was post-exodus design which Scorpions would not have on file but it's exactly the thing that Hansa would license from Lyrans during the arms race (and something Lyrans would easily part with in exchange for big fat paycheck from very nervous Deep Periphery cousins).
It's awesome how you have these little lore tidbits hidden in MUL.
There is also Goshawk II 4 showing up in ilClan era but there don't seem to be any fancy story there, clearly bought from Sea Foxes (unless it was isorla from that double trial?)
Only(?) mech with XXL engine in their inventory. And of course they picked laser boat one with targeting computer, Scorpions and targeting computers are like Davions and autocannons.