Furious charge and Axe only give +1S each, so it's S6AP2 on charge. Just a minor point.
The only problem with that otherwise great loadout is that Riptide can challenge (
IIRC).
If you accept, it's going to stomp you with I2 and if you don't, then no swinging for you.
And against Tau, 10 Marines is a lot. I have been running 5 Assault Marines in
LRR with either Corbulo or Ordo Xenos guy.
Surprisingly, they can deal with a Rptide quite well if you get close enough.
And only now did I read your
OP properly, silly me
So new points:
1) maybe combi-Plasma is the way to go. They will hunt Riptide(s if they survive).
2) Tau are built upon lots and lots of infantry. Weak infantry. So why are you palkinto so many weapons against heavier infantry, like the Termies?
Reclusiarch
6x Death Company, Power Fist
-
LRC (
MM)
Sanguinary Priest (Power Weapon/Fist)
5-9x ASM, Power Fist
-
LR (
MM)
7x Sternguard
- 4x combi-Plasma, 2x combi-Melta
- Drop Pod
Vindicator
This would be a good core. It's something like 1100-1250 so there's plenty of room to add the stuff you like.