Casino Heist Reward
In order to get clothing unlocks in most cases you just have to complete the heist as crew member or leader, with some exceptions where you need to finish certain preps.
Only host can chose clothing set to use on heist so if you need anything you can ask host nicely to use it for easy unlock.
According to Reddit, the maximum Diamond Casino Heist payout is GTA$2.1 million. While that's a persuasive sum, note that Lester will always take his 60k cut.
Exit the casino, and call Lester to cancel the heist when you're far away enough for the prep to be over. Costs 25K every time and you need to have done all approaches at least once. I'd say it's worth it, but I have quite a lot of money to toss away and I seldom need more than 2 scopings. Is the monetary reward for completing these missions pretty solid? Haven't tried it yet, still kinda waiting for the casino hype to die down. Not worried about spoilers, just curious if it's financially worth the time investment.
Silent & Sneaky
- Balaclava Crook (Available by default)
- Classic Crook (Available by default)
- High-end Crook (Available by default)
Gta 5 Online Casino Heist Rewards
- Infiltration: Advanced Tech (Optional Prep: Infiltration Suits)
- Infiltration: Modernized Tech (Optional Prep: Infiltration Suits)
- Infiltration: Upgraded Tech (Optional Prep: Infiltration Suits)
The Big Con
- Bugstars Uniforms (Mandatory Prep: Bugstars Gear Part I)
- Firefighter Gear (Optional Prep: Firefighter Gear)
- Gruppe Sechs Gear (Mandatory Prep: Gruppe Sechs Gear Part II)
- Maintenance (Mandatory Prep: Maintenance Gear Part II)
- Refuse Collectors (Mandatory Prep: Bugstars Gear Part II)
- Yung Ancestors (Optional Prep: Yung Ancestor Exit Disguise)
Aggressive
- Evening Armor (Available by default)
- Oderly Armor (Available by default)
- Upscale Armor (Available by default)
- Reinforced: Bulk Combat (Optional Preps: Reinforced Armor)
- Reinforced: Compact Combat (Optional Preps: Reinforced Armor)
- Reinforced: Padded Combat (Optional Preps: Reinforced Armor
Other
- Valet Outfits (Mandatory Prep: Getaway Vehicles)
- FIB Suits (Mandatory Prep: Hacking Device)
- Prison Guards (Mandatory Prep: Vault Key Cards)
- Undertakers (Optional Prep: Level 2 Security Pass)
- Refuse Collectors (Mandatory Prep: Bugstars Gear Part II)