I'm not going to go over what specific reason each different form of building equipment has for being in the game, but again, logic should dictate to a degree on this. What the hell is a siege tower going to do in battle aside from result in colossal failure 8/10 times? Weapon racks and so on can have a purpose if used properly, but i've seen what you guys have been using construction material for(at least some times) on several occasions(barricading doors and holding off in a room until the end of a round with a hand full of others taking advantage of a bottle neck/last stand scenario while the rest of your team was killed as a result of being outnumbered/beaten as a result of the lack of players participating in the battle,etc.). Know that as of now, it is now against the rules according to meow. Again, this is your warning. If you have issue with it, i'd suggest making a petition/complaint about it in the appropriate forum, as this decision would be out of our hands whether we disagreed with it or not.