Just to be 100% positively sure: Does Explode Level X trigger when a Camo/TO marker is the only target under the template?
From the Example of Explode level X on the wiki: http://infinitythewiki.com/en/Explode#Example_of_Explode_Level_X: Following the Direct Template Rules, if the Circular Template of the explosion affects, for example, a Camouflage or TO Camouflage Marker without having a valid target inside the Template, or affects a friendly or Neutral trooper, then that explosion is cancelled and considered null
