Defines an InfantryType that will spawn from a destroyed construction yard. However, Red Alert 2 (and Yuri's Revenge) do not distinguish between factions so the Engineer spawned will always be the infantry defined by this tag.
a
Determines whether this InfantryType has the properties of an engineer, which allows that infantry to enter any structure that has BridgeRepairHut=yes set, capture any structure that has Capturable=yes set and to repair any structures owned by that player. In Red Alert 2 and Yuri's Revenge, this also prevents infantry from using a weapon on any object, should they be given one, except if the weapon has a warhead with BombDisarm=yes set, in which case it will be able to target and successfully be used on objects which have an IvanBomb attached. Weapons of any kind can be force-fired on the ground.