2000 Tyranids list vs CSM

[tyranator]

HQ

Hive Tyrant w/ Wings, 2 x TL Devourers & BW, HC - 285
Hive Tyrant w/ Wings, 2 x TL Devourers & BW - 260

FAST ATTACK

17 Gargoyles - 102

ELITES

Doom of Malan'tai w/ Mycetic Spore - 130
2 Zoanthropes w/ Mycetic Spore - 160
2 Hive Guard - 100

TROOPS

Tervigon w/ Catalyst, Onslaught, TS - 200
Tervigon w/ Catalyst, Onslaught, TS - 200
14 Termagants w/ Devourers, Mycetic Spore - 170
10 Termagants - 50
30 Hormagaunts w/ TS and AG - 300

I still have 43 points left, what could I spend it on?
My plan is to use my Gargoyles as cover, while my Hormagaunts move up behind them to charge at Cultists or Khorne Berzerkers. My Tervigons will advance up, spawing Termgants which will go for objectives and tie up other units. I plan on my Doom dropping wherever the most units are, my Zoanthropes will shoot at the Defiler and Rhino whilst my Flyrants thin out units until the Heldrake comes in, one will shoot at it while the other shoots at Daemon Prince. My Hive Guard will act as a support unit, shooting at any stragglers and finishing off the Defiler or Rhino. And lastly, my Devilgants will hopefully destroy any objective hold unit. And my 10 Termagants will go for the closest objective which will hopefully be in area terrain so they can lurk if there's no synapse.

What do you think? How could I improve it? Thanks a lot.

[tyranator]

Also, I'll be trading out all psychic powers for Biomancy, apart from the Doom's.

[rbacus]

drop the hormagaunt squad down to 29 (or do some other minor point removal), this will give you 53 points left over to put crushing claws on both of your tervigons. Big buff when they're smashing and using biomancy.