Reduce Flamethrower speed to match rifle infantry

Given that Flamethrowers are quite powerful and tough (90 HP), I don't see why it makes sense to also have them be super fast. It seems they should walk at normal speed, especially given how much of a threat to buildings they are.

Reducing their speed will give Grenadiers the distinction of being a fast infantry unit.

If you think this hurts them too much, then their range should be increased, not their speed.

mods/cnc/rules/infantry.yaml

@@ -92,7 +92,7 @@ E4:
 	Selectable:
 		Bounds: 12,17,0,-6
 	Mobile:
-		Speed: 71
+		Speed: 56
 	Health:
 		HP: 90
 	Armament: