Stim

 is a Pilot Tactical in Titanfall 2.

Summary
The Stim in Titanfall 2 will significantly boost your speed by doubling it and will heal you after a short delay after activation. The ability is very useful if you are in the middle of a firefight and need some health, or you need to get away from a bad situation, while also being effective as a combat asset, allowing you to get in close for maximum damage with a shotgun or a melee attack. It can also help you in rodeoing enemy Titans and riding friendly ones, if you need a battery or one of your teammates does. Being able to significantly enhance your speed in any case, it can get you out of trouble, and it can make trouble.
 * Use it for short range combat, like with shotguns and melee.
 * Use it to escape a bad situation or get into a firefight quickly.
 * Use it to assist you in rodeoing an enemy Titan, or escaping from said Titan after the Rodeo.
 * Use it to be the first into the fray