This guide was heavily inspired by these 2 guides, make sure too check those out as well.
I got totally destroyed by a friend of mine rushing the titan in multiplayer, and after that I wanted to get better at the game so I tried to follow the tyranid guide and figured tyranids could also rush tech
My guide assumes that you already know how to rush 2 tyranid cities by turn 18 from this other guide. Everything below will basically be a variation of that guide that makes heavy use of the reclaimation mechanic but it should be pretty straightforward
https://steamhost.cn/steamcommunity_com/sharedfiles/filedetails/?id=2368197173
https://steamhost.cn/steamcommunity_com/sharedfiles/filedetails/?id=2935891618

Tier10 Research done already at turn 64



Explanation/goals/tips:
TL;DR: rush tier10 research asap and hope no one attacks you, stomp game

You won't have anything to defend with until turn 35-40~ when you can afford the hive tyrant, except maybe 1-2 units you really wanna use to speed up buildings instead of fighting

Probly going to take until turn 70~ if you get unlucky / no good research bonuses

Prio any available 20%+ research tiles on city1 for a 3 city rush if there are very few around/ not enought later for city2 (check the other Tyranid guide linked above if you don't know how to rush)

bio/inf = pref bio but make sure inf don't go negative, Most likely going to need/lack inf more than bio, bio supply should stay high due to reclaiming all units)

Scythed Hierodule requires 320bio each later so 2-3 should be doable by then if no units die
inf shouldn't be an issue after finishing your hive tyrant

Focus on reclaiming termagants/Malanthropes in city2 for max research asap, The exception can be for rushing hive tyrant in city1

Focus on building the 3rd city before making the hive tyrant

Prio Dominion on hive tyrant (more research due to better city loyalty), long range for synapse in endgame

Stock up on 2-3 Exocrine as reclamation fodder once all 3 cities have all buildings done
to make sure you can get out your Scythed Hierodules faster


Scythed Hierodule ready just 3 turns after being researched



MAKE SURE ALL CITIES ARE PLACED ON 3 SLOT TILES
Also make sure you are always producing units so you can reclaim and speed things up
this is the reason we start with unit production buildings in city 2 & 3

Disable = turn off 1 building once the city is complete due to population cap

City1 reclamation fodder/resource mix:
place on 20%+ research, have 1 more 20%+ research nearby for tile2
science
barrack, settler, hero,
Claim outpost if available
science, science bio/inf
(disable hero)

City2 resource production:
Pray for 20%+ research, have 1-2 20%+ tiles nearby if possible
settler
science *6
Claim outpost if available, claim after *3 if ruins of vaul
(disable settler)

City3 Monster Production:
perefebly placed on bio bonus
monster
bio/inf, monster, bio/inf
Claim outpost if available
bio/inf, monster, monster
(disable bio/inf)


Research: left -> right
Synapse Archevores, Alpha Ovipository
Aedanthropum, Brood Haunt
Birthing Canals, Hive Tyrant
Ripper Dispersion, Gigaborer Hives
Aggressive Expansion, Extra Infantry armour
Grey matter Dispersion, Exocrine
Desiccator Larvae, Extra monstrous creature armour
Ocular Proliferation, Acid Blood
Regeneration, Megaunt Instincts
Scythed Hierodule, Adrenal Glands
Go back and grab Toxin sacs tier2, Bioweapon symbiosis tier6,
hammer of wrath & Biomorph Adapation tier9. Grab everything else until everything is researched


3 tier10 320biomass units ready to go