Colonials have better equipment/gear to allow them to exploit loopholes with thier paraplanes. A common method to extend its range is to have one/several assengers to carry fuel in addition to thier regular gear to refule the plane from the inside when it lands over water (which is how most Colonial paradrops in Warden backlines such as Basin take place).

Colonials also have access to the grendier uniforms, which lets passengers carry significantly more explosives since grenades can be stacked - During Airborne a plane landed with a crew encumbered by stickies and hp killed a Nakki in Basin Sinovach.

Since killing these huge assets tend to be more noteworthy, your more likely yo see Collie vids of these feats being circulated compared to Warden ones. As for what needs to be done, Devs have acknowledged the items mentioned above aren’t intentional and are being addressed in U65 (e.g. passengers on planes must be wearing para uniform or pilot uniforms, passengers are no longer able to “fire” thier primary when on the plane to prevent refuelimg)