Fallout 3: Operation Anchorage Message Board  

Simply put: I got a lot of PM's asking about Fallout 3 and which trainer to use when considering the DLC is seriously weird with Fallout 3.

The moment you take up the checkpoint after answering the distress call, all game headers change to "Operation Anchorage" memory addresses meaning you need the operation anchorage trainer to use cheats even though it is STILL in Fallout 3 1.1.035 or w/e it is.

When you're in Fallout normal, you use the Fallout 3 Trainer.

This will help a lot of you

So to further clarify, the game headers are still in Fallout 3 up until you go meet up with the Brotherhood of Steel and trigger the switch, but so long as you don't go to them, it's still Fallout 3?

So if I wanted to, I could keep going in normal Fallout 3 trainer up till I go to the bunker/vault the sim is in and then save and make the switch?

I'm kinda confuzzled here

This is correct.