Thrown knives, spears, rocks or other items have no impact, damage or any other effect on players or AI. Logically, spears and knives should cause regular damage (including causing a bleed) while rocks and other thrown objects should at the very least cause some shock damage - a lot in the case of larger objects that can be thrown.

Also there is still no sound effect when a thrown item hits the ground or other obstacles. Infected can hear this noiseless impact, which is a confusing inconsistency. This prevents you from throwing objects to distract players, which should be possible.