Never in my life have I heard this. Yeah, it seems to be there in the DMG, but my old play group always assumed you could move and do stuff (attack, cast a spell, etc.). Change Tina's move to a closing action. Charging means loss of Dex bonus to AC and that's too important for her.Alright need to go over a few things before I update the IC:
1) This is the only addition of D&D I know of that you can't move and attack in the same round, unless you charge. Going to poat the actions and also add it to the RG for better reference.
Well apparently my gaming group screwed this up. We always rolled individually and always added the reaction modifier to initiative (instead of using it for surprise). Hm.2) You don't roll Initiative separately or add in your Reaction adjustment to regular Initiative. It is just a 1d6 for each group - highest wins, ties go to weapon speed factors and casting times (let's hope that happens rarely). The Reaction adjustment comes in during Surprise and helps individual characters deal with Surprise better (i.e. faster than less reactive characters).

(Dungeons & Dragons)
Rulebook featuring "high magic" options, including a host of new spells.