The plot could involve a device or a powerful jutsu that accidentally merges the two universes. Naruto, Sasuke and the rest of the Konoha 11 join forces with the Gears soldiers. They exchange fighting techniques. The shinobi learn about the advanced weaponry of the Gears, while the Gears learn about chakra control. Together, they face a great evil that is emerging due to the unification of the two worlds.
Well, it could be about Naruto and his friends being transported to the Gears of War universe. They might have to fight the Locust horde using their ninja skills. Naruto could use his Rasengan against the tough enemies there.
One possible plot could be that Naruto and his friends are transported to the Gears of War universe. There, they team up with the COG soldiers. Naruto's ninjutsu skills could be used in unique ways against the Locust Horde. For example, his shadow clone jutsu could be used for reconnaissance or as decoys in battles, while his rasengan could be a powerful close - range weapon against the tough Locusts.
A plot could involve a character from Gears of War having the ability to use chakra in the Naruto universe. For example, Marcus Fenix discovers he has an affinity for fire -style jutsu. He then teams up with Naruto and Sasuke to take on a group of rogue ninjas who have made a deal with the Locust to gain power. They have to combine their skills, with Marcus using his combat expertise and newfound jutsu ability, while Naruto and Sasuke use their ninja skills and chakra powers.
The combination of powers is also great. For instance, Naruto's Rasengan in the hands of a Gears of War character, or a Gears of War weapon being used by Naruto. It changes the way battles are fought and strategies are formed. There are also often plotlines about how Naruto's ideology of never giving up and friendship could influence the more cynical and war - torn world of Gears of War.
One idea could be that Ben Carmine gets transported into an alternate dimension where the Gears of War universe has some strange new threats. He teams up with the Gears there, using his skills from his own world to help fight off the Locust horde. Maybe he brings some unique weaponry or tactics that the Gears haven't seen before.
Well, it could be about Naruto being transported to the Gears of War 4 universe. He might team up with Kait. Maybe they fight together against some common enemies, like the Locust. Naruto could use his ninja skills while Kait uses her combat training.
It could be really exciting. Imagine the COG soldiers from Gears of War facing off against Sith Lords in the Star Wars universe. Maybe the Locust Horde could be some new threat in a Star Wars - like galaxy. The different technologies and powers would make for some intense battles.
Maybe in the fanfic, the technology from Gears of War is introduced to the Naruto world. The Gears team arrives in Konoha, and they start sharing their knowledge of advanced weaponry and combat tactics. Naruto is intrigued by the big guns and armored suits. They then have to fight against an evil ninja clan that has somehow got hold of some of the Gears' technology and is misusing it to take over the ninja world.
Another possibility is that there is a new threat that emerges from the combination of the two universes. Some sort of evil entity that has the powers of both the Naruto universe, like the ability to use chakra, and the dark magic from the God of War world. Naruto and Kratos would have to learn to trust each other quickly in order to stand a chance against this new foe. They might start off at odds with each other due to their different backgrounds and fighting styles, but eventually realize that they need to work together.
One possible plot could be that Kaite and James are part of a special squad in the Gears of War universe. They are sent on a dangerous mission to retrieve an important artifact. Along the way, they face hordes of Locusts and have to rely on each other's skills. Kaite might be the strategist, while James is the more combat - oriented one. Their relationship could start as just comrades but develop into a deep friendship as they face life - and - death situations together.
There are quite a few out there. 'Gears of War: Naruto's New Battlefield' is another. In this one, Naruto teams up with Marcus Fenix. They combine their combat styles, like Naruto's acrobatic attacks with Marcus' more brute - force shooting and melee combat. It makes for some really exciting action scenes.