>>5696210That's literally how they come, its not pre-colored plastic they actually painted over the top of the plastic
Here, this is the 1/144 gimmix f-15 active, yes they have bad nub marks but the build actually hides them apart from missiles, just trim those down well, all you need for 90% of it is glue hobby knife (not sand paper you'll fuck it up) and sprue cutters.
...I will warn you though, shit like additional missile pods may require a pin vice or something, pretty much when you get to the external weapons and there is no hole in place for a peg which the external weapon SHOULD have then it may require said tools, also be careful of any pegs on the parts, I cut a few of those off and ended up gluing down wing flaps (which don't need glue as they're meant to be poseable, the manual will state which steps don't need glue).
One final tip, not all of the parts need glue, I'd recommend gluing down the top half and bottom half of the plane modes to remove the giant ass seem, but otherwise just snap it together until a part is too loose