I have not followed the comics since the original series and even then it was only for the first 20 or so issues.

But would i would like to know is... Was Sci-Fi or Barricade ever in the comics and if so does anyone know what issues? Thanks for the help.

Sci-Fi yes: Marvel 64, 65, 72, 74, 75, 77, 100, 145, 146, 147, 148, 149

Barricade no, unless he made an appearance in a recent DDP issue.

i believe sci-fi was also used a bit in the european missions

would you know where i could find a pic of him and what uniform he wore. i am try to make a comic pack figure

There is one picture of the comic Sci-Fi in JMM's G. I. Joe Encyclopedia:

http://www.myuselessknowledge.com/joe/joeenc.html