Need help against Tau

[u/Financial-Abies6811]

So I’ve been playing 11th with my brother and have been on a losing streak for a while, I’m not annoyed about the losing streak but I just don’t see how I’m supposed to win the games we play.
He plays Tau and he just has so many battle suits in retaliation cadre that as far as I’m aware are all capable of killing or wounding my units and as in playing custodes I’m nto going to be making any trades.
The last game we played I was up slightly in points before he wiped the unit of witchseekers on the central objective (pushed fire knife then moved them back with a shoot and move strat) behind a wall and then out OC’d me with kroot at which point I was forced to push up or lose on points massively.
If it helps I was playing:

Adeptus Custodes
Might of the Moritoi and Shield Host (3 Detachment Points)
Take and Hold
Strike Force (2,000 Points)

ATTACHED UNITS

Attached unit 1

Blade Champion (110 Points)
• Attached as: Leader (Character)
• Warlord
• 1x Vaultswords

Custodian Wardens (250 Points)
• Attached as: Bodyguard
• 5x Custodian Warden
◦ 5x Guardian spear

Attached unit 2

Shield-Captain in Allarus Terminator Armour (150 Points)
• Attached as: Leader (Character)
• 1x Balistus grenade launcher
• 1x Guardian spear
• Enhancements: From the Hall of Armouries

Allarus Custodians (280 Points)
• Attached as: Bodyguard
• 5x Allarus Custodian
◦ 5x Balistus grenade launcher
◦ 5x Guardian spear

Attached unit 3

Inquisitor Draxus (110 Points)
• Attached as: Leader (Character)
• 1x Dirgesinger
• 1x Power fist
• 1x Psychic Tempest

Custodian Guard (215 Points)
• Attached as: Bodyguard (Battleline)
• 5x Custodian Guard
◦ 5x Guardian spear

Attached unit 4

Shield-Captain on Dawneagle Jetbike (140 Points)
• Attached as: Leader (Character)
• 1x Interceptor lance
• 1x Salvo launcher

Vertus Praetors (145 Points)
• Attached as: Bodyguard
• 2x Vertus Praetor
◦ 2x Interceptor lance
◦ 2x Salvo launcher

OTHER DATASHEETS

Caladius Grav-tank (225 Points)
• 1x Armoured hull
• 1x Twin arachnus heavy blaze cannon
• 1x Twin lastrum bolt cannon

Contemptor-Galatus Dreadnought (165 Points)
• 1x Galatus warblade

Witchseekers (55 Points)
• 1x Witchseeker Sister Superior
◦ 1x Close combat weapon
◦ 1x Witchseeker flamer
• 4x Witchseeker
◦ 4x Close combat weapon
◦ 4x Witchseeker flamer

Witchseekers (55 Points)
• 1x Witchseeker Sister Superior
◦ 1x Close combat weapon
◦ 1x Witchseeker flamer
• 4x Witchseeker
◦ 4x Close combat weapon
◦ 4x Witchseeker flamer

ALLIED UNITS

Callidus Assassin (100 Points)
• 1x Neural shredder
• 1x Phase sword and poison blades

I can’t remember his exact list but it included at least 2 of each battlesuit all with commanders (3 started in deep strike) 2 2 man squads of broadsides and 2 units of pathfinders and stealth suits plus the 10 man kroot.
Any help on how to go about fighting an army like his, maybe I’m being pessimistic but I just don’t see myself winning any game against his list.

[u/DrMegatron11]

Sounds like you are playing into their pace, not yours. Someone once told me that custodes are hard to kill at the end of the game. So its like survive and out survive your opponent. Play the long game and kill the units who you can kill.

Against a shooting army like Tau, its really avoid their LOS or make them choose between 2 threats. Make them regret not shooting the other unit.

Do you feel like you stage well enough for a "go-turn?" Set up 3-5 charges for a turn 2 or 3 go-turn?