Unfortunately, we have not learned from MW2. In Free for All or in other game modes will be boosted and fair play is not possible. The spawn system works arbitrarily and is not thought out.
Anyone looking for a fair competition in multiplayer will be disappointed.
For me MW3 retrogression is compared to the previous CoD titles with the worst in my view multiplayer.
From the mistakes in the past, you have not learned.
Even he who seeks only a smidgen claim in a FPS shooter that should refrain from MW3. If you want to give pleasure to his children who can safely access!