General Damon and Malik faced off against the Porter army at the Ember Spire Fortress stronghold. The Ember Spire Fortress is easier to breach due to its construction and location.
It was built at the heart of a dormant Volcano. Powering the defenses is the infernal energy from the depths of the volcano. But even though it's easiest to breach it doesn't mean the Poters will have it easy.
While General Elara used long-range weapons and General Cedric and Clark used Traps, General Damon and Malik decided to use a little of both. Utilizing the infernal to their advantage, General Damon used flashbangs to create a controlled battlefield.
The 10km from the stronghold is very volatile to fire attacks so he planned to use the space to his advantage, They cooked up some bombs that reacted to the temperature around them so using the Flashbangs, they managed to divide the Porter army without them even noticing.