When any original RA2 mission is opened, the HouseType Parameter for trigger actions 3 Production Begins, 37 Make Enemy, 38 Make Ally & 74 AI Triggers Begin do not match what is shown if the same unedited mission were loaded in Final Alert 2.
The best map to test this on is all06u as the trigger BG1 Production Start (t=15m) uses all of these trigger actions.
See example below

When any original RA2 mission is opened, the HouseType Parameter for trigger actions 3 Production Begins, 37 Make Enemy, 38 Make Ally & 74 AI Triggers Begin do not match what is shown if the same unedited mission were loaded in Final Alert 2.
The best map to test this on is all06u as the trigger BG1 Production Start (t=15m) uses all of these trigger actions.
See example below