I have been trying to find all the tapes and guns by myself but I just can't find the Eulenberg #2 and the Jim #1 tapes also where are the blueprints for riveter and auto shotgun I've looked around the map like 2 times and I still can't find them.

It is the only blueprint I need to get all the achievements, and I have no idea where to find it. Any help would be appreciated!

I'm at the end of the game, and I've been combing through trying to get all the secret cassette tapes/weapon blueprints. Things I know I'm missing: Eulenberg #2 Capt. Solis #1 Kahn #1 The room by the tram with the red light and red X on either side. The locked room to the right of the Omega boss. If anyone has figured some of these out, any help/hints are appreciated! I've been having a good time searching, but I think I have to throw in the towel on these ones....

Please let both happen.

Hi there! About how long is the game? How would you describe the difficulty? Adjustable? Thanks!