This sounds extremely under-powered. For a start, you're on an island, so the dog will probably walk off a cliff. If you want to navigate between islands then you have to spend more time and safety making a handrail on the bridge for the wolf so it doesn't trip over and fall to its death, which just isn't worth it since as already mentioned, you're on an island and if somebody has the choice to shoot either a player or a wolf, 9/10 times they will choose the wolf. I'd like to see a wolf kit in survival games though since it won't fall off a cliff at the first chance it gets, but with 3 wolves instead of 1.