My First Iron Hands

[Terminator]

I've decided to switch to using Iron Hands tactics with my space marines, as what I enjoy most are heavily mechanized lists. Here's my first draft for competitive play. Feedback greatly appreciated.

Terminator Captain - Thunder Hammer, Shield Eternal 195
5 Assault Terminators - 5x Thunder Hammer/Storm Shields 225
Land Raider Redeemer - Extra Armor 250
10 Tactical Marines - Plasma Gun, Combi-Plasma, Meltabombs - Rhino 205
5 Tactical Marines - Lascannon - Razorback/TL-Lascannon 165
5 Tactical Marines - Lascannon - Razorback/TL-Lascannon 165
5 Tactical Marines - Lascannon - Razorback/TL-Lascannon 165
Whirlwind 65
Whirlwind 65

Total: 1500

[Popsical]

I take it your plan involves ignoring enemy air power?
It looks like a list that would have been pretty good in 5th ed.
Hellducks own your army as do vendetta spam lists, simply put its not overly competitive, but it could be depending on your local meta.

[Terminator]

You are spot on. There's simply not a lot of flyers in the local meta. Perhaps I should squeeze some points out for a Stalker at least.

[Popsical]

If flyers arent popular in your local meta, i would take a missile launcher or two with flak upgrade for tacticals as a fallback option.
This wont cost you too many points, but will stop a lone hellduck wrecking your day.
Your really vulnerable to the ducks ap3 flamer, one of your mates will spot this, and you will suffer badly for it.