Quote Originally Posted by solypsist
1. everything can be retrained

.

Minus mercanaries but they can be merged

As far as retraining, my guess is the senate gave you a nice gift that you did not have facilties to train for. I believe you need a catapult range to retrain that scorpion, if not then you need a siege engineer. Anyways to retrain it your going to have to tech up high for it.