Not a problem, First sticky kinda covers this, but I forgot to go back and elaborate there...
Robotech si teh bastard child of three aniem shows: Macross, Super Dimensional Calvary Southern Cross, and Genesis Climber Mospedea.
Carl Macek had to cobble together a show long enough for American Syndication or they wouldn;t air it. he knew the anime market was ripe and created "Robotech out of the editing of those three shows (some are more edited than others).
Although it was a hack job of three totally unrelated series to me it worked beautifully! It was decent dialogue and even better voice acting that made the story move and felt that it was one long saga.
This Mod covers most of Macross and some of the Invid Invasion (Mospedea). At the current time we are skipping Southern Cross cause of the lack of a ground/gravity mod (maybe in the future we will revist it).
Macross II was an alternate Universe storyline (like Gudnam has a bunch of, most of the characters/events have nothing to do with each other).
Macross DYRL (Do you Remember Love) is considered a Movie made to dramatize the events of Space War One (Macross). It is considered a movie within a movie and the anime characters themselves know of it as a movie! The Bridge crew of the Battle 7 in the Macross 7 series talk about DYRL and how Basara is probably trying to be like the next Lynn Minmei.
Some mecha/events may appear in the mod from these series but only as "easter eggs". Plus I have to acquire the resouces for them first.
I do write cross over fanfiction at spacebattles.com (occasionally) so if you like Robotech crossovers with just about everything go check it out (Link to it in the second from top thread).
I hope this answered most of your questions, but feel free to ask me anything (Robotech) related. If anyone takes that as an opportunity to spam I will sick the Hyper Intelligent shade of Blue on you!