500 pt tournament list - SM White scars - Purge the Alien

[evilm0nkey]

Hello my fellow tyranids.
I'm looking for some advice on my 500 pt list for an upcomming tournament at my FLGS.

The rules:
No Lords of War, Gargantuan Creatures, special formations, unbound armies or flyers/FMC. Also, your army has to be made from a single codex. No allies or supplement codices either.

So that means no Flyrants, which is problematic. After playing around with some lists I couldnt get any tyranid list up to a sufficiënt power level.
So I decided to run with my marines.

As the tournament is killpoints only I try to minimize the number of killpoints in my list.
I will likely be facing mostly Grey knights, Deamons, Space wolves and Tau.

This is what I've got now:

SM - White scars chapter tactics

HQ
Captain on bike, Artificer armour, Thunder hammer, Shield Eternal

Troops
Bike squad (4 models), 2x grav, combi-grav and MM Attack bike

Bike squad (4 models), 2x grav, combi-grav and MM Attack bike


Only 3 KP in this list.

With Skilled rider USR, the bikes have a 3+ jink.
The Captain is tough, but expensive.


I've been thinking about maybe upgrading the captain to a chapter master, the orbital bombardment could be an instant game changer at 500 pts. But I'm already spending so many points on him.

My biggest worry is the low body count. If I drive up to a Tau gunline the volume of fire could drown my guys.

What do you guys think?

[Kark]

Chapter master is good idea if You ask me. He's almost unkillable but can kill others easily Orbital strike is also nice. I'd stay with powerfist, it's 5pts cheaper.

Alternatively You can go with 2 librarians on bikes with psychic shrieks (they auto-hit now, if Youplay with new FAQ).

[evilm0nkey]

Thanks for your reply!

With the chapter master upgrade I would have to drop an attack bike. So we have

HQ
Chapter master on bike, Artificer armour, Thunder hammer, Shield Eternal

Troops
Bike squad (4 models), 2x grav, combi-grav and MM Attack bike

Bike squad (3 models), 2x grav, combi-grav

Would the burning blade be a good option? It is nice to strike at initiative 5. But I would have to drop the Shield Eternal or another Attack bike.