I have palyed DOSee several times on explorer mode and when I encountered the Sparkmaster I was able to disable it's powerfull electrical attack w/ the controller I received from Arhu. But when I played the game at normal difficulty and at tactical mode the controller doesn't work. When I use the code to disable weapons the Sprkmaster operator says he needs another charge but lets loose w/ the electricel charge which usually kills at least 2 of my group. I am able to take out the Sparkmaster , but it's annoying that the controller doesn't seem to work. Anyone else run into the same problem , and is it a difficulty mode thing or has an update changed the fight ?