I know that many of the ST fans are sticklers for canon (except almost all of them have one or more episodes that they would rather pretend did not exist), but it makes me curious: Is there is anything that, while fairly trivial overall, you like to change in your games?
I have two. The first is that everything shown on the series and films is an in-universe dramatization of the “factual” events. This means that the “canon” that we see IRL may or may not be entirely accurate. This allows for the complete editing out of episodes that are disruptive (or just plain stupid). In particular, for my game, Voyager did disappear in 2371, but the rest of the events depicted in that series are entirely fictional. Also, the scale of the fleets in my Dominion War are considerably smaller than those described and depicted in DS9 (dozens and scores of ships in many battles rather than hundreds or even thousands of ships).
My second is that the 2373 “First Contact” Starfleet uniforms will never exist. I just don’t like them at all. Instead, the TNG uniforms (two-piece, second type) and early DS9/Voyager uniforms will both be in use from the 2350s through at least the 2380s. Commanding officers can decide which uniform is appropriate for any particular post/mission. Finally, the shade of blue for the Sciences Division uniforms will remain the shade seen in TNG rather than the more greenish teal seen later. Like I said, it’s a trivial change, but it matters to me.