This will enable her to aim at targets and take them out with a single shot. In some parts of the game she needs to shoot at triggers or she can use it to kill baddies or destroy traps.
Combining Puzzle Pieces
- first eye piece, second eye piece
By combining the large and the small waterskin you are able to gain different amounts of water in one of them. You will need this in the last level of Last Revelation, Temple of Horus. You can combine them in each direction, but you will get a different result.
There are also useful tools Lara can combine. For example in Chronicles, Ireland in the level Gallows Tree Lara can find a Rubber Tube and a Pitchfork she can combine to get a Catapult with which she can shoot at a bell.