Exallion
Myostatin-related muscle hypertrophy (or myotonic hypertrophy) is a rare genetic condition characterized by reduced body fat and increased skeletal muscle size. Affected individuals have up to twice the usual amount of muscle mass in their bodies. They also tend to have increased muscle strength. Myostatin-related muscle hypertrophy is not known to cause medical problems, and affected individuals are intellectually normal. The prevalence of this condition is unknown. Like the tanker in left 4 dead
How about l type zombie it’s a zombie who is incredibly smart and can boss around other zombies but it’s weakens is it’s incredibly weak and in the beginning stages it’s only as smart as a child when it comes to strategies. But the way it gets smarter is eating the brains of humans and other smart sentient race, if it eats someone who knows lots of things that L type zombie will get partial knowledge about everything that human knows and it can discard useless memories for useful ones and it gets partial psychic powers like attacks and learns how defend it own mind and it controls its zombies with its mind but they usually start with controlling zombi3s in the 100s so a LZ type one can control Anywhere from a 100 to 999 zombies a LZtype 2 can control a 1000-9999 and the difference between a type 2 from a type 1 is that type 2 have elite troops that protect just it in the center or wherever.but same types don’t work together unless a bigger types forces them to work together for example a type 2 LZ will control 10 type 1 but if they don’t have a upper number controlling them they always have war with each other. another way to get stronger is if they eat each other’s mind