I've Just finished reading the three alien module from Mongoose publishing. then I started reading the FFE reprints of the original CT alien modules . except for mongoose traveller's descriptions of the Gvurrdon and Trojan reach sectors the information seems pretty much the same. I've also read the first three G.U.R.P.S. traveller alien books my question is:
Are all versions of Traveller alien modules the same, but packaged differently, such that I could Use for example MGT Aslan and Vargr in a CT universe?
I haven't read all the responses (no time); the GURPS alien books are more flavored than the original LBBs. They deliver the same info in terms of basic background material, but the GURPS books offer more fleshed out material and case specifics. The text in the original alien books (like with a lot of LBB stuff) is pretty dry. The GURPS books have personality when delivering crucial info about whatever it is you need for your gaming session.