The Infiltrator

A class about infiltrating inspired by Snake Plissken (Escape From New York) and Solid Snake (Metal Gear franchise) 

See Them Before They See You

Starting at 3rd level, you gain darkvision out to a range of 60 feet (in colour). If you already have darkvision from your race, its range increases by 30 feet.

You are also adept at evading creatures that rely on darkvision. While in darkness, you are invisible to any creature that relies on darkvision to see you in that darkness.

The Basics Of CQC

Starting at 3rd level, you are at your deadliest when you get the drop on your enemies. You have advantage on grapple rolls when the enemy is unaware of your current location. When an opponent is grappled you gain advantage on all attacks and sneak-attack damage is doubled on damage done against that target.
The grapple action is also counted as one of the bonus actions usage due to Cunning Action

Sneaky Bastard

Starting at 9th level, you have advantage on a Dexterity (Stealth) check if you move no more than half your speed on the same turn.

 

CQB Ambush

Starting at 13th level, you excel at leading ambushes and acting first in a fight.

You have advantage on initiative rolls. In addition, the first creature you hit during the first round of a combat becomes easier for you and others to strike; attack rolls against that target have advantage until the start of your next turn.

Enhanced Reflexes

When you reach 17th level, you have become adept at laying ambushes and quickly escaping danger. You can take two turns during the first round of any combat. You take your first turn at your normal initiative and your second turn at your initiative minus 10. You can’t use this feature when you are surprised.