By David Wetzel New York (Knewz) — Well, that was quite a trick — and a treat. Soldiers with U.S. Army Fort Sill delighted trick-or-treaters by firing off candy from a giant gun, the same model the United States has sent to Ukraine to help fight off the Russian invasion. “How else would you expect us to give children candy on Halloween? FIRE MISSION!!!” the fort stated in a Facebook post with video of the gun shooting off candy. The video already has more than 1,000 reactions on Facebook. The giant gun, which is a High mobility Artillery Rocket System (HIMARS), is being used by Ukraine soldier…