I'm curious about alternate paint jobs in competitive play?

For instance if i run the composition of 4 B-wings and one Z-95. All four B-wings are dagger squadron pilots however one of them is the paint job from Rebel Aces and the other three are the base look from an individual booster. Is this tournament legal?

iirc as long as the model is an ffg x-wing product it's fine, and that includes custom repaints.

Edit: reference from the tournament rules pdf, page 4

During tournament play, each player is required to use the components included in official X-Wing products (see “Legal Products” on page 5). The head judge is the final authority on any component’s eligibility in the tournament. If a component is ruled ineligible and the player cannot locate a replacement for it, that player is disqualified from the tournament. It is possible for players to have multiples of the same ship in his or her squad. To avoid confusion that player must identify each individual ship and its corresponding Ship card. This can be done with a token, a sticker, or any other form of marking. Players are welcome and encouraged to personalize their squads according to the following rules:

• Players may paint their ship models. They cannot modify the size and shape of a ship model in any way.

• Players cannot modify ship bases to alter their size or shape. Weight may be added to a ship base if it does not alter the shape of the base. Ship pegs (including the connecting pegs affixed to ship models) may be modified or replaced with a different connecting method.

• Cards must remain unaltered, though they may be sleeved for protection. Sleeves for Damage cards must be identical and unaltered.

• Players may mark their tokens and their maneuver dials to indicate ownership as long as the function of the component is not compromised. However, players should be careful not to mark the backs of their maneuver dials in any way that may indicate to their opponents what maneuvers they have selected!

• Players may mark asteroids and debris fields to indicate ownership, but cannot otherwise alter them in any way.

• If two or more models in play could potentially touch causing conflict with movement or placement of ships (e.g. two Millennium Falcon ships are placed with their bases touching), players must adjust the number of plastic pegs to increase or decrease height until the ship models are not touching.

Yeah, any FFG paint scheme is tournament legal*. There's no requirement to match paint schemes across multiple generics. Nor do you need to match paint schemes to card art. If you play against me with Baron Fel in a red Interceptor I will judge you as a person, but there's no actual rule being violated.

*: Custom paint jobs are legal too, unless they cross some other line. So paint all your B-Wing models in purple camo if you want, but don't use tiny stencils to paint miniature racial slurs on them.

The paint colors do not matter.

You can run any combination of FFG Model colors or even those that you have custom painted yourself.

The important things are that it is a FFG model that has not been altered to the point where it is unrecognizable and that you have the proper base tokens and matching pilot cards.

You can paint your figures up however you want. You may also use whatever ship you like for a given pilot; this means that if you use can use the expansion Interceptor for Jax and the red one for Fel no one can complain even if they don't match up with the colors on the cards.

So paint all your B-Wing models in purple camo if you want, but don't use tiny stencils to paint miniature racial slurs on them.

What about words of a scatological nature, intentionally misspelled in reference to a gaming show, then transliterated into Aurebesh. Kosher, or would it turn around and bite me in the ass?

The important things are that it is a FFG model that has not been altered to the point where it is unrecognizable

That's not really true... The rules say "They cannot modify the size and shape of a ship model in any way." Now what constitutes a change in the shape is somewhat subjective. If you take the turret off a HWK-290 and put it on the top, or even rotate it. Technically you've changed the shape, but it's unlikely anyone would say anything.

If you modded your X-Wing to have the wings closed someone may or may not say anything... If you did that and changed it so it looks a lot like a Z-95 then someone may say something.

So if you made any changes to the model itself, it's best to bring a stock version of it just to be safe.

Kosher, or would it turn around and bite me in the ass?

The official standard is, if someone finds it offensive. So as long as they can't actually read it, then you're ok.

I think you've reached new levels of Nerdness if you can actually read Aurebesh.

I'm slowly getting it. Nothing teaches you an alphabet like the process of turning an Imperial fighter squadron into a flying poop joke.