This version will only run off of a model 1. (It may run on a model III or IV with a cassette baud rate set to 500).

This is the original cassette. To run from level2 basic (non disk) rewind to beginning then type CLOAD"O" to load the program. To load the INTRO scenario just type INTRO in the scenario name and it will load (it is right after the Orion program. To run the Builder (used to build the other battles (or your own)) type CLOAD"B" on the tape.
 
NOTE: not all emulators work correctly with CLOAD"filename" and none will work this way if you are in DISK BASIC. If CLOAD"O" or CLOAD"B" does not work you need to position the tape to the correct place before hitting play.

using Matt Reids win32 emualtor you need to type CLOAD and position the tape to:
0 for the ORION program
250 for the intro scenario
288 for the BUILDER program
then hit play.

remember if you are in DISK BASIC you need to type CMD"T" to disable the inturrupts before any tape operations. (best just to type BASIC2 at the dos prompt and go into LEVEL2 basic to run cassette only programs).

The manual for this game can be downloaded at www.trs-80.com.