The Imperial Guerrilla Offensive is a series of guerrilla attacks on JSDF conducted by Zorzal's force led by Viscount Herm Fule Maio. In detail of Herm plan, due to the superior firepower of the JSDF in the open field, most of the attacks on JSDF must be conducted through ambushes and guerrilla attacks. The Imperial Guerrilla often conducts based on the pattern that Imperial troops will disguise as civilian and merchant to attack the unexpected JSDF troops while Herm and his general from the far distance will send monster like Black Dog or Ogre to decimate the JSDF during the chaos since the JSDF will have to busy fighting the disguised Imperial troop. Furthermore, Herm also uses shapeshifters to attack the JSDF while disguiesed as innocent civilian.
However, due to Herm's vast underestimation of firearms, most of the operations meets extremely little success. Despite inflicts some damages on JSDF and sometimes force them to retreats, the Imperial Troops often faces Pyrrhic victories since they lose a couple of hundreds of men and black dogs as well as ogre in every operation just to take down mostly 10-20 JSDF members. Furthermore, Herm and his troops also lack of awareness about scanning technology resulting Imperial Troop being rooted out at fast pace by JSDF since JSDF can detect them under their disguises through scanning as well as JSDF can adapt to his strategy at little time. Furthermore, the shapeshifters employed by Zorzal's force also being quickly killed after facing the JSDF. To make matter worse, Herm and the rest of pro-war senators and general cannot comprehend night vision technology of the JSDF in which they cannot figure it out how the JSDF can see the ambushed troop clearly in the dark night and the only thing they can think of is the JSDF somehow can see through the dark. As the result, even a night raid and ambush against the JSDF also turns into a huge disasters for the Imperial Troop.
One of most prominent fatal flaws in Herm's plan is that he never takes into account of air support of the JSDF in which all his Black Dogs and Ogre are decimated by Napalm and missile from JSDF gunship when they surround the JSDF platoon. The reason for this flaw is that Herm doesn't gasp the concept of air bombardment and air supports tactics in modern warfare since he was too used to melee close combat ambush and dragon riders close combat support.
As the result, the Guerrilla tactics only works for few times and after the incident involves Tomita and his troops successful anti-guerrilla operation, Herm finally quits his Guerrilla tactics in frustration while learning little from his idiotic underestimation of firearms. Furthermore, the use of napalm by the JSDF also causes Imperial soldiers to lose vast amount of morale due to the horrible effect on their comrade body and nothing they can do to extinguish the flame.