+ Splash damage flashes a team-color outline of where a player was standing when they were damaged, which decays after half a second
+ Direct hit puts a tracking outline on them which stays for 1.5 seconds
+ Outlines can be seen by teammates
- 20% less damage
- 33% less roll distance
- No Random Crits (of course)
- If you damage yourself enemies get an outline of you

EDIT: Removed the charged shots thing because this is a grenade launcher not a sticky launcher ya stoopid