1st off, where the fuck is the crashed UFO??? That picture embedded in the beginning of the video doesn't prove that the falling object is an UFO, neither that it was falling in that place! The person who made this video may have just put that picture there, so how the fuck do you know it's a "spectacular UFO crash"??? 2nd, the dude in the video and the other voices in the end are speaking English, and as far as I know they speak Spanish in Guatemala. 3rd, that fire looks like a chemical explosion to me and I pretty much doubt that alien crafts use chemical propellant, so in the best hypothesis that's a meteorite that hit some chemical plant.

Wake me up when someone actually from Guatemala clear this up!