![use etank use etank](https://www.schwarzmueller.com/fileadmin/_processed_/6/f/csm_C_TankSanhFlugfeldStrasse_PIC3_081ee6b8da.png)
Tanks in the first volume also only spawn singly and at fairly predictable times and locations, often betraying their presence by uttering distinctive growls and arm flapping movements from behind their places of partial concealment.
![use etank use etank](https://towersignage.com/wp-content/uploads/2018/10/TANK-WATER-SIGN-2017.jpg)
While unfortunate for the victim, it provides an excellent opportunity for teammates to counterattack. Tanks in Left 4 Dead fixate on a single Survivor at a time, pursuing this person until they are dead, whereupon they switch the focus of their attacks to a second victim. It also cuts down the time on tank fights. However, it's merely a game mechanic to prevent the tank's music from pestering the players if he fails to reach them and yet is not killed directly. However, when the Tank is completely trapped, unable to find a way to reach his target, or hasn't hit any Survivor for too long after starting a fight, he automatically dies due to frustration. It is presumed that the energy it costs to run the Tank's enormous body is too much, so that he must wait until the Survivors move close or start attacking to accumulate energy. Despite the extent of his mutations, the Tank along with the Charger are the only Infected that retains some human speech, as he may be heard saying "Noooo!" when he dies. The Tank will even smash down doors, knock away obstacles, and plow through entire crowds of Infected just to bare down on a specific Survivor he has chosen as a target. Once the Tank has fixed a target, nothing short of death can stop him bullets and explosives will not make him flinch, fire only slows him down (unless playing campaign in Left 4 Dead), and the sound of pipe bombs and car alarms won't distract him (ironically enough, though, in the Left 4 Dead intro, it is a car alarm that alerts a Tank). The Tank has also suffered either heavy brain damage or a rabies-like cerebral infection, resulting in the Tank being in a constant state of unbridled rage, even more so than most other Infected his immediate response is to attack any human Survivor on sight. The United States Marine Corps symbol on the left side of the Sacrifice Tank's chest, instead of the regular gaping chest wound
![use etank use etank](https://www.ecigclick.co.uk/wp-content/uploads/2015/09/ehpro-etank-s2-coil.jpg)
This also allows the Tank to take massive punishment from all sorts of weapons, and also protects his vital organs, such as his head as shooting there deals the same amount of damage as if he was shot elsewhere. The increase bulk gives the Tank superhuman strength a single punch can destroy safe room doors, launch Survivors and objects a considerable distance and he can even rip off chunks of ground to serve as a ranged projectile. The excessive muscle mass serves as both the Tank's weapon and armor. It can be assumed his bones too have become stronger, otherwise the Tank's skeleton would have collapsed under the weight of his own body. The Tank's jaw at first glance seems to be missing, but upon closer inspection it is shown to be enveloped within his thick neck muscles. The Tank's body is covered with numerous scars and lesions from previous fights, with an especially large open sore on his left pectoral. Though the Tank's legs are capable of supporting his static weight (such as when the Tank mounts a rock throwing attack), the Tank's disproportionate anatomy forces him to knuckle-walk, resulting in the Tank's wrists becoming swollen. This abnormal muscular growth is most obvious in his arms and upper body but less pronounced around the Tank's waist, hips, and legs. According to the Left 4 Dead 2 Survivors' dialogues, the Tank is around 10-12 feet tall and 6 feet wide. Ironically, the Tank is incredibly fast and agile despite his immense size and weight, able to keep up with a healthy Survivor and even climb up buildings like other Infected. Evidently, the most obvious trait is his extreme hypertrophy, or abnormally increased muscle mass. The Tank is an exclusively male Special Infected who has experienced the most extensive physical mutations of any other class of Special Infected.