Space Marine

"They shall be my finest warriors, these men who give of themselves to me. Like clay I shall mould them and in the furnace of war forge them. They shall be of iron will and steel sinew. In great armour I shall clad them and with the mightiest weapons they will be armed. They will be untouched by plague or disease; no sickness shall blight them. They shall have such tactics, strategies and machines that no foe can best them in battle. They are my bulwark against the Terror. They are the Defenders of Humanity. They are my Space Marines and they shall know no fear."
 * — The Emperor of Mankind

What is a space marine?
Space marine or Adeptus Astartes are the finest warriors The God Emperor can offer to protect mankind. They are highly trained superhumans, those have no fear and serve the Emperor loyally.

They have gone thru genetical modifications, psycho-conditioning and extreme training. They are capable of surviving even the hardest hits and are immune to any plague. They wear a heavy space marine armor, protecting them from enormous amounts of damage, and they wield an arsenal of weaponry. The most standart weapon you can see them wielding is the Bolter.

Due to the amount of different battles and centuries, they are split into chapters. There are thousands of chapters, and you can join some on the ArchAngel forum.

Recruiting
The best of the best are usually recruited from one homeworld, but here on ArchAngel just leave a forum post.