The PK arena or "spar" had now been updated. It is now shaped like a square, and the middle has been removed so it requires players to follow around to get to the other side, since there is no middle to walk through. Also, you can now only shoot through walls if you are point blank with the wall. Barrels have been added, and supply drop locations have been moved. This update personally enhances PK'ing on zone for me as there is more skill, and less spamming.
Thoughts?
Also, it is importand to note there is a new feature to switch weapons easily by holding on an icon then swiping left.