Not enough anti-tank. Lascannons are great against taking down transports, not so good against higher
AV. Whats your plan when your opponent uses a Land Raider, or Monolith?
One of your Tactical squads doesn't have a rhino, that squad is as good as dead. Take a razorback for the 5-man vet squad and give the rhino to the tactical squad.
Extra armour on the Vindicator and Predator are a bit of a waste, you still can't shoot.
That 10-man vet squad is insanely expensive, and is limited to only attacking infantry. What happens when it gets assaulted by a Dreadnought? You should probably get some Powerfists/Thunderhammers for this squad.
To be honest, it seems like a pretty soft "all eggs in one basket" list. But as a fellow
DA player (even though I use the
SM codex and play a Vulkan list

) I'm glad to hear that you're winning.