Haha, chain reaction, that's another fine idea. Synth grenades work great in this matter - making gigantic mess and leading plenty different fractions into combat. If all else fails, you could try to lure some deathclaws from the west.. nah, that's probably too far and dangerous. The damage on survival is brutal. The acid damage the queen does isn't pleasant either, but what about luring it to the gunners plaza? On of these respawning faggots always has a fatman.