Here are just a few ways I can help you out...
Rome wasn't built in a day, and neither was Rapture. World building is the glue that holds your narrative elements together, providing context while also giving the impression of depth and breadth beyond the screen's bounds. I created tons of lore for Heavenstrike Rivals under the guidance of some of the best in the business.
Sometimes, the problem is volume: you need a lot of different ways of saying largely the same thing. So if you need a hundred different ways of saying 'I've thrown a grenade', I'm your man. You want a sample? Okay, how about: "Hunker down, I've egged the dispenser!"
(You can have that one for free.)
Want to make sure that your characters are delivering their lines in characterful ways? Want your dialogue to zip, slank and cronk? Well I don't know about the last two, because I just made them up, but I can make dialogue sound more dramatic, sparky, witty and pacey.
Is your third act failing to ramp up the tension appropriately? Is your character development feeling disjointed or unnatural? Is your soggy middle making people want to give up? Mine too. But back to story: I can read your treatments or scripts and suggest areas that are holding back your narrative from truly shining.
You want to get in touch, right? Go on. Just press that button there. No, it's fine, it's a button: it likes being prodded. That's how it gets its kicks. You want to make the button happy, don't you? Well then. Don't be a clicktease.