RASP TB-SG AIR-S
Take this shotgun just in case, it's really effective against defenders.

AM MRS-71 RIFLE
Take it to deal with UAVs.

WU S.PISTOL
I don't know why I take it with me really, since I hardly ever use it, but if your enemy doesn't wear helmets, then infiltration will be a cakewalk.

HAND OF JEHUTY
Best arm out there IMO. Works great against enemies you can't tranq.

Or

LVL 3 STUN ARM
It can stun everyone in 45m radius, regardless of where they are. You need to wait until it charges tho. Also it seem to stun only the enemies that you can see on your screen, for example it wont stun an enemy behind you, it still works if the enemy is behind a wall, that you can see, anyway you get the idea. Say thanks to user DeHot, who reminded me of it.

Quick tip: when I started playing I found it annoying that nade doesn't match it's trajectory, since quickly changes when you start throwing it. That happens when you press LMB quickly, so hold LMB first to see the real trajectory.

SMOKE GRENADE
The most usefull item in this loadout along with the Sleep Grenade. Throw them at your enemy's legs and they won't see anything. Keep 1-2 of these for the last platform to smoke the nukes and extract them stealthily. It can also work like a temporary stun.

SLEEP GRENADE
Throw it at your enemies and they will fall asleep, it's as easy as it can get. It also seems like enemies can't see through it, but I can't confirm it.

STUN GRENADE
Use it to stun enemies, if you are low on Sleep Grenades.

MAGAZINE
Throw it to distract your enemies and sneak past them.


NVG
It's not really useful during the day, though it will save your ass during the night.

NOCTOCYANIN
It's basically a wallhack. Keep in mind that it won't mark players.

URAGAN
Seems like a good idea, considering it's a 1 hit stun and it doesn't matter where you shoot them.
On the other hand, it's really loud and enemies will know where you are.

ANY UNDERBARREL CAPABLE WEAPON
You can change the explosive rounds for smoke or sleep, if you develop a Fakel Grenade Launcher. I'm not sure if enemies can hear the shot though, since I never used underbarrel.

SQUARE CAMO
Has the highest camo index when infiltrating FOBs, but enemies will hear your footsteps. It also doesn't have faster health regen like Sneaking Suit has. It is worth equipping tho, try it out.

Put your gear in the comments, I will be updating this list.

SMOKE AND SLEEP GRENADES
Especially useful, since lethal guards never wear gas masks, remember to keep 2 smokes to smoke off the nukes and then fulton them out safely.

CRITICAL WOUNDING
Critically wound an enemy and fulton him out, it will work only with wormhole, since it has 100% success rate. Anything with good damage will be fine, especially sniper rifles.

ACTIVE/ESTUN/NORMAL DECOYS
They are really useful too, they will keep your enemies busy while you can crawl past them. ESTUN ones are especially useful, since they stun your enemies.

QUCKLY WALK UP THE STAIRS
Press space in their direction and you will find yourself on top of them, If you crouchwalk you are most likely to get spotted

Put your tactics in the comments, I will be updating this list.

In the latest update they added thermals for the guards, if allows your guards to see through the smoke. Non-lethal setups are freaking overpowered now, since you get gas masks, thermals and helmets. I suggest you to use it.

If you want to be a hero you need to do good deeds. The best good deed out there is nuke disposal, but if you want to dispose of them you need to steal them first. There is how to do it.

1. First off you need to make sure you don't kill anyone, because heroes don't kill. That means you need to use non-lethal tactics to complete your objective like smokes and sleep grenades, they are extremely useful against well protected FOBs, since soldiers there are wearing Battle Dresses and Protective Headgear. For some reason no one wears gas masks, which is kinda strange. You can steal all the nukes and infiltrate an FOB without killing anyone like this.
   You can also use other tactics from the Tactics section.
   
2. Secondly you need to make sure you wear your Sneaking Suit, because Battle Dress isn't really stealthy. Also remember to wash off the blood, because it makes easier for your enemies to spot you.
   
3. Remember to bring at least 1 lethal gun to deal with UAVs. Something like a sniper rifle is great. Just keep in mind, that you need to stay stealthy too. Unless your legendary gunsmith can make you a rocket launcher with a silencer attached to it (You can do that, search it up)
   
4. Everything exept crawling isn't worth trying while infiltrating. Enemies can spot you easily even if you crouchwalk. They will have a hard time if you are crawling tho.

Nukes are ALWAYS on the core command platform (if defender has them of course)
Your best bet if defender isn't online, Infiltrating 4 platforms is hard enough. If defender arrives and you happen to be at the core platform fulton out the nukes ASAP (Wormhole Extraction device helps a lot, since it can't be shot down). Also if you didn't know, you keep all the stuff, that you have extracted even if you lose. After that, you can try to win, but that probably won't happen.
Nuke extractions are delayed and you need to wait a couple of hours to be able to dispose of them. During that time defender can retaliate and get his nukes back.

• Raise your preparedness level to highest on all platforms.
  
• Do a non-lethal setup, because it's harder to deal with. Your soldiers get equipped with gas masks if you change it to non-lethal. It's a great tactic against people who bring sleep grenades with them. Also you get an enemy soldier, if your guards fultoned him.
  
• Get some supporters to help you out, if you can't defend it yourself. Just successfully defend their FOB.

There is a useful tactic that reddit user SasserMaster told me. You just need to fulton out your nukes before invader can reach them.

And that's all you can do really. Also non-lethal shotguns work great against invaders, just stun them and fulton them out.
Everything from this guide in 1 picture

To dispose of the nukes you need to check if they were delivered at your base. A number of nukes will appear near the number of platforms and staff you have.
If you have any go to Resources tab.

After that go to Nuclear Weapons and choose Nuclear Waste.


Select the number of nukes you want to dispose and dispose of them


Congrats, you are now a True Anti-Nuclear Hero. You can now see the number of disposed nukes. If you dispose of 10 nukes you will get 30000 heroism and you will lose 30000 demon points.


It's not over yet tho, if we disarm all of the nukes, we will see a secret cutscene.
Anti-Nuclear is love, Anti-Nuclear is life.