10 Things about Heist:
1. Patrols aren't considered to be 'guards' in relation to alert level.
Guards are active skills that provide short term survivability to characters. Guards are spells without cast time characteristic. As guard skills are spells they are supported by spells modifiers.
All guard skills share a cooldown - no guard skill can be cast while any others are on cooldown.
2. Going to certain areas in grand heists prevent back-tracking entirely.
3. There is a 50% chance for an escape door to end the grand heist even if you never triggered the alarms.
4. You can leave a heist to empty your inventory at the door in contracts, but NOT in grand heists.
5. Dying during a heist is fine so long as the alarms haven't gone off, but crashing or logging out always ends it.
6. Team members during a heist can get stuck in combat and refuse to do their job until you kill everyone around them.
7. Sometimes the acrobatic job will get the user stuck on the other side of a door. They will refuse to open the door and instead start killing the guards.
8. You will more often than not fill your inventory during a grand heist. This can lead to mid combat inventory management problems.
9. If timed correctly, you can teleport a team member while they are doing their job, allowing them to complete it remotely. (this causes all sorts of glitches)
10. Tankier exiles will find that it's easier to disable lasers yourself by walking straight through them, and onto the disarming pad. (Movement skills also make this easier)
If you want to gain an advantage in Heist faster, you can buy POE currency. You can buy POE currency in an EZnpc, EzNpc offers the cheapest price. With the same money, you can obtain more Chaos Orbs and Exalted Orbs.