This is the main part of the legendary Bruticus! Onslaught is a mobile missile launcher that is used in tandem with the other combaticons to attack Autobot territories.
Step 1: Build
Step 2: Transform
Now that you have all the combaticons, you can mentally prepare for combination.
Hope u njoyed!
(This is my last 2014 instructable btw. The series will be complete during the Year of the Combiner!)