Fire ant soldier

General
Fire ants are the result of nuclear fallout mutating regular ants. They gain their ability to breathe fire when a scientist named, Doctor Lesko begins to manipulate the genetic code of the giant ant to reduce it's size to that of 200 years ago.

Tactics
Due to the added threat of their fire breathe it is best to handle them in mid to long range. Crippling their antennas will cause the fire ant to frenzy and attack all characters in the area. As with all organic enemies the head or the torso are also good target areas. Avoid shooting the legs because they take only 50% damage. Another tactic thats very useful with all varieties of fire ant is to get to them quickly so they can't blast you with their fire breath and stand over the op of them and beat them with a tire iron or similar melee weapon, thus avoiding their fire breath.

A good general approach is to snipe at the antennae and head at long range with the Hunting Rifle (don't waste precious .308 sniper rifle ammo on this minor pest, save it for muties and mercs) until the fire ant is either dead or getting close enough to use its fire attack. At this point, quickly step around a corner, equip the combat shotgun, and wait for the ant's head to appear. All varieties of ant are fairly quick in a straight line, but are slow when turning. You'll have plenty of time to put a few shells into the bug before it turns far enough around the corner to attack you.