We love to do stealth!

Heads up on the new 26 update!
The best way to gain EXP and/or money at this time is the Election Day heist with Death Wish difficulty. With a little bit of training, you can easily stealth them with 2(least) - 3(easy) players.

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Feel free to invite your friends!
友達追加はご自由に！
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• DON'T KILL. Killing slows everything down.
  
• DON'T BREAK THE WINDOWS. Remember: windows > guards.
  
• Use the Saw with Control Freak skill to instantly gain control of the entire area.
  
• With the Berserker skill and the Saw, reduce your HP to below 25% to gain more speed for opening deposit boxes.
  
• ECM duration: 20s -> 25s (delay) -> 30s (door open basic).
  
• When connecting to a game as a client:
  　・ ECM sound will be turned off in 20 seconds regardless of your skill. The effect however will last as long as your skill's duration.
  　・ You sometimes get shot by guards even if you attacked them before they spotted you. So don't try to melee; just shoot at them.

• You can burn your hostages to kill them without losing your money.

Although it is not publicly stated, you can actually do stealth in some maps which are described as unstealthable.

- Firestarter
[Day 1] You could do stealth in day 1 before the 24 update because we had infinite body bags. It is unconfirmed whether we could still do it or not.

- Mallcrasher
Just bring 6+ ECM to do stealth, or you can use the safe glitch spot at the T-shirt store.
For solo stealth, see this video: https://www.youtube.com/watch?v=-vrbnQ5-GhI

- Framing Frame
[Day 1] You can ECM rush (plan C) with 5+ jammers.
[Day 2] You will still sometimes get ambushed even if you have completed day 1 in stealth.
[Day 3] Don't kill unless in critical situation. Just sprint to fetch all devices quickly.
[Day 3] Guards at roof sometimes break the ceiling windows just by walking on top of them.

- Election Day
[Day 1] You can eliminate 2+ trucks having same names.
[Day 2] (DW) You should memorize the places where crowbars will spawn.
Screenshots: http://steamproxy.net/groups/pd2stlv/discussions/0/558751812958707499/