Yes i can use any weapon, even though i mainly use the bow
apparently the only way is to maybe cheat the xp and then earn the weapons and buy them normally rather than using the cheat to do it.
The game is constantly being updated and has broken code and we are making it do things that were never intended or forseen by the developers, so likely the weapons are crashing the game because the developer didn't forsee someone forcing them for use and without some sort of call to set up something that might be missing.
in short, you would have to use the XP cheats and then go kill something with a fresh start to the game, and NOT use the unlock weapons options.
Thanks for the response Cal.
I can also confirm the above anomalies with the Freeze animal/shoot/crash scenarios.
The freeze animals is a valuable addition of the trainer --- we should really keep it.
The gun "unlock" feature does not allow me to buy the guns ( unlock them) even after I have leveled up with a lot of XP that I added with the trainer.