A weapon, a warrior, a soldier, a blade. He had spent years in struggle and combat, and wished only to rest. His respite is given, and cut short just as quickly. But his battlefield is now far away, and his enemies from even further beyond. His name is Excalibur, and he was the first Tenno. He will be so again.

The Grineer have discovered an Orokin artifact that can open portals to other universes. The Tenno find out and attack them with a Railjack fleet. In the midst of battle, a Tenno squad and their Railjack are sucked into the collapsing portal. As they exit the portal, they find themselves in the Human Covenant War. If they are to return home, the Tenno must find new allies quickly.

when you have been exiled by the people that you thought your brothers and sisters, and thrown into the mass of energy and space that created your own kind. what will happen in this strange new war to wage. Fem-Arbiter/OC

As an old Tenno awakes, Dimensions starts to resonate. Old lovers, new frienships. Jealousy, cowardice, rage, camaraderie, hope. Countless emotions, only one thing is certain: something big will occur. Starts on Warframe Universe, after Arc no. 2, it starts shifting towards Halo crossover. ON REVISION. I will be doing revissions, after 2 years, I'll try to update.

With the Sentients subdued but not defeated, the Grineer where now the main focus of Tenno Yumi Yada, Hiro Nonaka, Futaba Kido, and Toya Katayuma. But what the young Tenno did not count on was getting thrown an unknown planet that was taken over by the Covenant and meet the UNSC while fighting for their lives on what is left of Yorktown

Cortana didn't reawaken John to fight the Covenant aboard the Forward Unto Dawn. Instead, the two wake up to a lifeless ship with no power, no communications, and with no idea what's going on. However, they soon discover that they are not alone...

The frigate Forward Unto Dawn has been devoid of life for over 4 years. yet, it feels much much longer.

Characters for my main story or maybe others

After the Betrayal, the long Night had two Champions. Their paths were ordained by Fate- one to madness and the other to a Great Journey across Time and Space. The first steps upon the Great Journey are difficult but the Path is clear.

A Stalker, a human being thousand of thousand of years old with untold hatred towards the Tenno, wakes up in a ONI research facility that's under attack by the Covenant after getting transported to the halo universe by a orokin power source. Now he is dragged into the war and might even find his target somewhere between the stars.