From Mud and Blood official Wiki
Ponds, also known as puddles or lakes, are these small and unobtrusive bodies of water found every now and then on the Battle Field. They are very pretty, although their only tactical effect currently is to put out Burning Soldiers (this will still kill the soldier, just stop him from spreading the flames). When this happens a cloud of steam appears over the pond.
- In another game made by Urb called Last Winter, ponds were quite useful and they looked exactly the same as they do in MnB2. However, they're nearly useless here because everybody is too worried about getting their a*% shot up to be looking for frogs or drinking water.