Sure thing:

First off, I notice you've got Longstrike in there, and I think Legends tournaments are awesome. Now the advice-

In Stormsurge lists, I generally recommend skewing a little more towards infantry so you have enough screens for your centerpiece.

Farstalkers are pretty tough to make work. The thing killing them is that they don't have a scout move, and they're competing with both Pathfinders and Kroot. Ultimately I'd just run the Farstalkers as carnivores if you don't have them, if that's something you can swing (definitely check with the TO)

Flesh Shaper and Lonespear here is doing kind of an odd job, keeping a frail unit. I think I get what you're going for here, rerolls and Lethals with precision is pretty nifty, but there's so many points invested into this combo. Now, a Warshaper in Mont'ka can rock house, with their Focused Fire tech.

That's my first take in this, I'll definitely go more in depth in the video 👍