Like each protagonist the series introduces, Shay has his fair share of new skills and weapons for you to play with. Likely improved by wealthy Templar associates, Shay's arsenal is packed with high-tech weaponry, like grenade launchers and advanced rifles. However, being a Templar separates him from the series' other leads, and he brings the skills to match. Eagle Vision, for example, can highlight threats to help Shay protect Assassin targets and neutralize pursuers. He'll also be able to intercept targets, presumably getting them out of the line of fire before the Assassins can make a move.
This is certainly a twist on the old formula, putting player on the defensive against the very direct Assassins. It's not yet known what sort of people Shay will be protecting, and with the way the previous games have framed Templars, we're rarely left feeling sympathetic to their cause. How easy will it be to guard some of those less savory folks? November will tell.