1. Traction trebuchet and Counterweight trebuchet are modern terms (), not used by contemporary users of the weapons.The term traction trebuchet was created mainly to distinguish this type of weapon from the onager, a torsion powered catapult which is often conflated in contemporary sources with the mangonel, which was used as a generic term for any medieval stone throwing artillery.

2. Counterweight One of the key design improvements that medieval engineers made in the trebuchet was in the design of its Counterweight

3. Arbalest - an engine that provided medieval artillery used during sieges; a heavy war engine for hurling large stones and other missiles arbalist , ballista , bricole , mangonel , onager , trebuchet , trebucket , …

4. The Catapult is a siege weapon to use to destroy buildings and resource fields as part of an attack.The Catapult is used by the Teutons; the Romans and the Gauls use Fire Catapults and Trebuchet respectively