"This doesn't seem to be enough for this mission."
Both Jill and Chris starts off with the COMBAT KNIFE in their inventory. Chris uses his knife with a normal stance while Jill carries hers upside down and swipes when she uses it.
The knife is the weakest weapon in the game and shouldn't be used to take on enemies directly. It's best for the very beginning of the game when player starts with nearly no ammunition. The knife can be stored in the item box once the player reaches the first save room.