Outrider's History
The Outriders are a mindless species subservient to Thanos and the Black Order, used to fight in the Battle of Wakanda and the Battle of Earth.
The Outriders were deployed in Thanos and the Black Order's assault on Earth, specifically in their attempt to retrieve the Mind Stone from Wakanda. Several Dropships were released from the Sanctuary II and were sent crashing down in and around Wakanda; the doors opened and the Outriders were unleashed upon the Wakandan plains.
Along with the Black Order, the Outriders faced the Wakandan army and Captain America's Avengers faction, throwing themselves at the force field in an attempt to destroy it. Many are killed, but as they continue, the force field begins to falter. When some begin to circle around the force field, the Wakandans are forced to let them through, prompting the aforementioned army and faction to engage.
Soon afterwards as the heroes are beginning to be overwhelmed by the seemingly endless waves of Outriders, Thor, Rocket Raccoon, and Groot join the battle, greatly turning the tide of the battle. After the remaining members of the Black Order were killed by Vision, Scarlet Witch, and Bruce Banner, some of the Outriders attempt to flee, although they are all eventually decimated by the Wakandans and the heroes.
After the Avengers created an alternate timeline in 2014 in their quest to steal the Orb and the Soul Stone, the 2014 version of Thanos used reverse-engineered Pym Particles and a Quantum Tunnel to transport himself, his weaponry and his allies to 2023, including the Outriders. Thanos' entire army was summoned to the ruins of the Avengers facility by Thanos after battling some of the Avengers.
Following Thanos' attack on the facility, he deployed a group of Outriders to hunt down the Nano Gauntlet. As Hawkeye was searching for the other Avengers he noticed the gauntlet on the ground, then hearing movement behind him. He drew his bow and quickly turned around, firing a flare arrow towards the movement, where he caught a glimpse of the Outriders. He grabs the gauntlet, and ran from the creatures, trying to protect the Infinity Stones. As Hawkeye made his way through the tunnels, he found himself about to be overrun by Outriders, so he started planting explosive arrows along the tunnel. The arrows then went off, causing the Outriders to be caught in the explosion, with Hawkeye just avoiding it. However, when he looked back, he noticed the Outriders were still alive and heading for him. He then fired a grapple arrow from his Wristbow and scaled upwards to safety. However, this didn't stop the Outriders, who continued to viciously go after Hawkeye, climbing upwards to get him. He then drew his katana and began to fend off the ruthless creatures, slicing them in half as they leaped at him. He then made it to the level above, eliminating all of them.
However, when it seemed that Thanos was going to win again, all of Thanos' victims came back to life and the decisive battle for the fate of the universe took place. As their fellow alien soldiers, many Outriders ended up losing their lives against the Avengers' forces. However, the battle came to an end when Thanos attempted once more to use the Nano Gauntlet to erase all life in the universe only for Iron Man to snap his fingers with the Infinity Stones, causing Thanos' army, including the Outriders that were present at the battle, to turn to dust.
