For those having problems locating the first missile pack...
Hope that helps some. I know had some difficulty trying to locate the first missile pack. Took me a good 20-30 minutes before I found it. Was the best feeling I had in the hack so far when I got it.
Once you get that missile pack, things will pick up I assure you.
As for your question ducknerd:
Just keep going left in Tetra Ruins until you hit a red door and can't progress any further. The ceiling in part of this room is fake and thusly you can jump through it. Once you do that, the huge steel structure at the top middle of the room houses your first missile pack squarely in the middle of said structure.
Hope that helps some. I know had some difficulty trying to locate the first missile pack. Took me a good 20-30 minutes before I found it. Was the best feeling I had in the hack so far when I got it.
Once you get that missile pack, things will pick up I assure you.
As for your question ducknerd:
Check near a bridge-like structure. There's an area you wouldn't quite expect one to search.