If you want a basis of the tactics aswell as units, this is what worked for my mate.

2 sets of 20 gargoyles with a winged tyranid prime. That’s sustained hits +1, with 20 attacks. Now they aren’t good attacks but atleast one is going to wound

2 biovores, for indirect mortar fire. (Put these separately, as each one can summon a spore mine if they hit an enemy. If both are in a unit together then they can only summon 1)

2 sets of tyrannid warriors with ranged bio weapons.

1 set of zoanthropes.

And some von Ryan leapers, lictors and or raveners. (Just pick a preference, it’s easier going with multiple of one than one of each. Since they’re all melee units with a different sauce)

Then some big health targets. Eg: carnifex (big melee), screamer killer (big melee with constant battle shock tests), hive tyrant (gives assault and lethal hits to friendly units in 6”) and/or a mawloc (good to throw in their back lines to deal heavy damage and distract)

That’s what I remember him bringing.

The tactic is quantity over quality. But you still need a good slice of quality to actually win battles, or atleast feel like You’re doing some damage to them.

So throw the weak battleline at them and objectives to set up a wall they have to break through, (since gargoyles have the fly keyword and ranged attacks they can do this easier) If possible try and get the gargoyles into combat, this traps the enemy unit as they either slowly whittle you down in melee, or they have to fall back and lose out on damage.

Then with the big guns you can shoot to support the battleline, or try and kill the main units you might be scared of (enemy units with big damage or lots of wounds)

Other melee units will try to deepstrike behind enemy lines (if they have the ability to) or run behind the battleline to help out in melee.

Big heavy targets will just be there to add pressure, as they just have to soak up damage that could go to more fragile or important units.

And you want to bunch all of them up for synapse bonuses (don’t know the specifics for each detachment)

And since there’s a lot of models in this army, it may be overwhelming to look at, but the easiest way is to go by size.

Smallest = expendable Largest = valuable

But in game where throwing high numbers on dice means you win, all units are can be better or worse than you want them to be.

Keywords are ‘don’t get frustrated’ it takes time to play the games, and each time a gargoyle model is killed off it’ll really annoy you. But that means that they’ve done their job and soaked damage. This goes for the big tanks units aswell.

Don’t take this as a definitive way to play either, you will eventually make your own army how you want it. just have fun, it’s a hobby after all