The short version:
In the long, long ago, a young corporation named FASA was created to make use of the Traveler RPG license. Around 1984, they came out with a game called Battledroids which was a game taking place in the far future utilizing giant, stompy robots. In 1985, they decided to change the name to Battletech for fear of getting sued by Lucasarts (who had a trademark on "droid").
FASA bought the license to images for several giant stompy robots from Macross and thus were born a whole series of 'mechs that existed in both universes (Robotech and Battletech). Flash forward to 1994, and...oops, turns out that the company that sold those licenses to FASA might not have actually had the rights to them.
This led to a series of lawsuits from the current (actual) license-holder: Harmony Gold.
Out of this, two classes of the cross-pollinated 'mechs were born: Re-seen and Unseen.
Re-seen 'mechs were redesigned to the point they no longer resembled the Macross 'mechs.
Unseen were 'mechs that could not be effectively redesigned without losing so much of the original shape that they'd be unrecognizable.
Several of the Re-seen mechs are in the game now (Locust, Griffin, Shadowhawk, Wolverine, Thunderbolt, and Battlemaster). None of the Unseen are.
The Unseen include the following 'mechs and, until such time (ie. never) an agreement is reached with Harmony Gold, they will never be seen in Mechwarrior Online:
- Stinger
- Wasp
- Valkyrie
- Phoenix Hawk
- Scorpion (also a four-legger, which is problematic in its own right)
- Rifleman
- Crusader
- Archer
- Warhammer
- Marauder
- Goliath (another four-legger)
- Longbow
- (there may be others, but this is what I can remember - comment below and I'll add them here)
http://www.kaempen.o...ld_v._fasa.html
For MWO's view on these 'mechs:
http://mwomercs.com/...94#entry4140694
Edited by Dawnstealer, 27 January 2015 - 10:45 AM.