Red Xenomorph

Red Aliens are similar to the standard strain of Xenomorphs, except for their color. According to some sources, they were more aggressive and reproduced more slowly. Some suspect they were produced by a rival faction of Mala'kak, and pitched against each other in a war the Blacks would win.

The red xenomorphs were a large army that killed and ate all other xenomorphs until the red army(red xenomorphs) was killed and wiped out by other xenomorphs and colonial marines.