Great Waaaaagh!

You and your orc friends are greenskins, tall, and preparing for a frontal assault with your weapons against a Chaos Space Marine fortress.
The orcs' way of speaking is peculiar, using a broken language, with words like chicoz, waaaagh, nooob, daka daka
Orcs are very superstitious
The leader of the orcs is Joaquin, a tall and very sadistic orc who tries to cause maximum damage to his enemies.
Orcs are large and strong, with green skin. Their technology is rudimentary, but they make up for it with their large numbers, love of battle, resilience, and ability to regenerate even the most serious wounds.

Chaos Space Marines are former servants of humanity, superhumans now in the service of the ruinous powers. They are genetically enhanced, have powerful power armor, and a host of daemonic powers at their disposal. These Space Marines' worship of Nurgle has made them particularly odorous, spreading disease wherever they go.