The Crusher

The Enforcer, also known as the Tanker Infected, is a Tier 2 Special Infected.

Appearance
Enforcers have the appearance of a large, powerfully-built military officer, still clothed in full company uniform. The most prominent of the "new" Infected, the Enforcer has a pair of bright, blue eyes, and a very hulking physique. Viral alterations have made the Enforcer much larger than most Infected, and its muscles have prominently increased in size. Players can literally see blue muscle tissue bulging across its body, with white sinew lacing in between the veins. The Enforcer also has red blood splattered all over its torso, which may have been the result of either an attack by an Infected, or it was the result of the body's skin not being able to handle the rapid, abnormal growth, thus making the skin rip apart and bleed from its exposed torso. Its bloody jaws are constantly bared towards its enemies, which could be a symptom of lockjaw. Because of their obvious characteristics, Enforcers can easily be distinquished from the other Infected.

How-to-Kill
Overall, the Enforcer is the most powerful Infected, with the longest attack range and highest damage rating (30). He is considered your worst nightmare in Cabin Fever and Black Lung. Luckily, he is very slow and very large, making him an easy target for even the simplest weapons to hit. Try to use that to your advantage.

Enforcers have pretty much no weaknesses at all, and there is no ordinary OHKO method to kill one. So unless you have an Instant Kill weapon (like the Airstrike), the best option is to always aim for the head and keep a constant stream of fire going.

If you manage to obtain the CF-Exclusive L96A1 Black Magnum, 2 well aimed headshots can easily fell an Enforcer.

Trivia

 * Though the name Enforcer was a player-coined term, Nexon actually used it once during an item review. Whether it was unofficial or not remains to be seen.
 * The Enforcer may be loosely based on the Tank from the L4D series, or the Tyrant/Nemesis series from the Resident Evil series or the Fallout series Supermutant considering the high damage they can recive and their extremely similar appearence.
 * The Enforcer also shares a similarity with Relinquished, in character scheme and coloring. The mouth on its hand also bears a resemblance to T-ER's jaws.
 * The Enforcer apparently has a mouth in the palm of its left hand. This is hard to confirm, because the Enforcer doesn't use it in-game. It is unknown if the same thing applies to the right hand, and if the mouth has a purpose. It is speculated to have an HP-draining ability, though this is unlikely.
 * When the Enforcer breaks down the door at Round 11 (CF), his eyes are clearly visible (red-tinged, watery post-mortem eyes). However, in all other circumstances he has pure blue eyes.