I just want to chime in and say that bridges are ridiculous and that should be changed.
I have 31 troops on a bridge and I'm doing just slightly over 2 meters per minute.
Seriously? 2 meters per minute? Is the bridge a single rope that each troop has to walk across, one at a time, single file? Is the bridge actually a Luck Dragon which takes each troop individually on a magical journey of adventure where they help save the Lost Gem of Aberdash, capturing it from the Evil Wizard and returning it to the Empress, whereupon they are finally deposited on the other side? Does each passing army burn the bridge behind them, causing the next army to have to build a new one? What's the deal?
I appreciate that they are meant to be a major ambush point but really, can we set some reasonable minimum speeds?