There is a goldsource movement port for Unreal Engine. I am no game developer, so take this with a grain of salt, but I am huge into movement games, and have played a lot of games and can tell when a game has bad movement or good movement, and this game is one of those games with bad movement. But that can be fixed!

The issue this game has is the air-strafing, the air strafing does NOT feel good. There is not any (at least not any noticable) air acceleration, like in source engine or quake engine games.

I know this movement system draws more from the advanced movement COD games, but the COD engine is an offshoot of the Quake engine just like source!

Implementing source engine movement feel would make it a good mix of Infinite Warfare/BO3 movement, and Titanfall movement.

There is a port of Goldsource movement for unreal engine,
https://forums.unrealengine.com/t/plugin-goldsource-movement-in-unreal-engine/598475

Titanfall also has a system called "Lurch"
https://youtu.be/vtW5AXOt8ew?si=Jt08ScqvTOxDUb1R
https://youtu.be/AjPSwwnKm1o?si=CRQ2eCIV69YKAjy_
Though this would be much harder to implement, Air strafing is the main thing to fix.

I think changing air strafing and B-Hopping would SIGNIFICANTLY improve the feel of the game, and attract a much larger audience. It would make people go "Oh c***, this games movement is cracked" instead of dismissing the game.

If your thought is "But this game is crossplay with console, so we cannot add movement like this" than my only response is... Apex Legends also has source engine movement, and is crossplay. Because Apex is in source. Sure, its not as fast as Titanfall, but it is entirely possible to air strafe on console and on controller.

Titanfall is also cross-platform, though not crossplay. The Orange Box also existed.

Edit:Video I made as a demonstration of this games movement compared to others
https://youtu.be/T0PDfHrtfLc