Mission 1: Very big cannon | Chaos' campaign: Act IV Warhammer MOC Guide

Now we will have to fight Imperial complexes - Imperial huge cannon must be destroyed. Mission is really easy, you have to only move forward and destroy every resistance you meet. Because of a regeneration shrine near the middle of the map, you can take whatever you want for this mission.

Somewhere there few Dwarves defend the regeneration shrine

Until you reach that altar you will encounter four Dwarven regiments. Meanwhile the canon will fire about three times, so leave the shrine right after one of its shots. Because there are no alternative ways on this map, you have to climb up the hill from the eastern side. Now destroy all hostile troops (Warpstone shower and Plague helps greatly). Meanwhile an enemy hero will appear - it's good to challenge him with the newest hero, because he can do some damage to our units. After defeating all foes and destroying the cannon you're victorious.