Projectile los and Invalid

[Aiden]

What does that mean and why i get so many of them ?

[stoneyoda]

basically means that the shot connected on your client, but the server didn't register it.
meaning it did no damage.

[Too lazy]

it always happens for example there's a tin gap in between tires you can shoot through it wont count as a hit and will do no damage

[God$quad]

♥♥♥♥ game