Yet another chance to ask CA some questions.

[Kraxis]

I always thought that the unit cards kept the chevrons but that INDIVIDUAL units were the ones that each had their own experience values - retraining added green troops but you couldn't see them.

The way it was in MTW was that each man had his own valour level. That seems to have been kept in RTW. But while the unit in MTW got restocked with whatever level troops the province could produce, in RTW that didn't happen.

After extensive testing a player here actually managed to get a ship up to 3 golden chevrons and the crew down to 6-8 of 40. When retrained the ship crushed any opponent as it was now a full 3 gold chevron ship, while it should have been around 2-3 bronze. Which is not enough to best 3-4 enemy ships of similar size, yet it won easily.

[EDIT]
Aww man.... Just noticed the chevrons in this screenshot.
http://pcmedia.ign.com/pc/image/arti...0035943672.jpg
Three silver (level 6) in a full-ish unit? Retaining experience after retraining is back...