Well, Halo has very advanced human technology like the MJOLNIR armor which gives Spartans enhanced strength, speed, and protection. In Star Wars, they have things like lightsabers and the Force. In a crossover, the MJOLNIR armor might be seen as a very advanced form of non - Force - using combat gear. The Covenant technology in Halo, with its energy shields and plasma weapons, would be quite different from the blasters in Star Wars. The Covenant shields could potentially be a huge advantage in battles against the Star Wars weaponry.
In a Halo - Star Wars crossover fanfic, when it comes to space travel technology, Halo has its own set of powerful ships like the UNSC Infinity. Star Wars has the iconic Star Destroyers and the Millennium Falcon. The UNSC ships are more based on modern - day military concepts with a futuristic twist, while Star Wars ships have a more 'used - future' look. The Halo ships' weaponry might be more precise and high - tech in some ways, but the Star Wars ships have the advantage of the Force - sensitive pilots in some cases.
The technology in Halo and Star Wars is quite different. Halo has a focus on more traditional military - style technology like assault rifles and grenades, albeit very advanced versions. In Star Wars, the technology is more intertwined with the Force. For example, Jedi can use the Force to enhance their piloting skills. In a crossover fanfic, it would be interesting to see how the two types of technology interact. Maybe a Spartan could learn to use a lightsaber with their enhanced combat training, or a Star Wars engineer could try to reverse - engineer a piece of Halo technology.