2000 pts shoot bugs help

Hi, currently building my Tyranid list. Need some feedback, anyone have any thoughts on this list?

++ Planetstrike Defender +5 CP (Tyranids) [56 PL, 907pts] ++

+ No Force Org Slot +

Hive Fleet: Hydra

+ HQ [17 PL, 323pts] +

Neurothrope [4 PL, 70pts]: Power: Catalyst

Tervigon [13 PL, 253pts]: Massive Crushing Claws [20pts], Power: Catalyst, Stinger Salvo [8pts], The Norn Crown, Warlord, Warlord Trait: Endless Regeneration

+ Troops [18 PL, 192pts] +

Termagants [6 PL, 64pts]
. 4x Termagant (Devourer) [32pts]: 4x Devourer [16pts]
. 8x Termagant (Fleshborer) [32pts]

Termagants [6 PL, 64pts]
. 4x Termagant (Devourer) [32pts]: 4x Devourer [16pts]
. 8x Termagant (Fleshborer) [32pts]

Termagants [6 PL, 64pts]
. 4x Termagant (Devourer) [32pts]: 4x Devourer [16pts]
. 8x Termagant (Fleshborer) [32pts]

+ Heavy Support [21 PL, 392pts] +

Biovores [4 PL, 72pts]: 2x Biovore [72pts]

Exocrine [11 PL, 216pts]

Mawloc [6 PL, 104pts]: Prehensile Pincer Tail

++ Vanguard Detachment +1CP (Tyranids) [28 PL, 556pts] ++

+ No Force Org Slot +

Hive Fleet: Kronos

+ HQ [4 PL, 70pts] +

Neurothrope [4 PL, 70pts]: Power: Catalyst

+ Elites [24 PL, 486pts] +

Haruspex [10 PL, 198pts]

Hive Guard [7 PL, 144pts]
. Hive Guard [48pts]: Impaler Cannon [30pts]
. Hive Guard [48pts]: Impaler Cannon [30pts]
. Hive Guard [48pts]: Impaler Cannon [30pts]

Hive Guard [7 PL, 144pts]
. Hive Guard [48pts]: Impaler Cannon [30pts]
. Hive Guard [48pts]: Impaler Cannon [30pts]
. Hive Guard [48pts]: Impaler Cannon [30pts]

++ Air Wing Detachment +1CP (Tyranids) [27 PL, 537pts] ++

+ No Force Org Slot +

Hive Fleet: Kronos

+ Flyer [27 PL, 537pts] +

Harpy [9 PL, 179pts]: 2x Heavy Venom Cannon [50pts], Stinger Salvo [8pts]

Harpy [9 PL, 179pts]: 2x Heavy Venom Cannon [50pts], Stinger Salvo [8pts]

Harpy [9 PL, 179pts]: 2x Heavy Venom Cannon [50pts], Stinger Salvo [8pts]

++ Total: [111 PL, 2000pts] ++

Created with BattleScribe ([url]https://battlescribe.net[/url])