The combat, first of all, is built around a central gun mechanic that, while it probably sounded clever at the time, ultimately frustrates far more than anything else. Despite using a computer to help with targeting, your auto-aim doesn't lock onto anything properly for a few seconds, which you generally spend cartwheeling or strafing around trying to avoid the attentions of battle-hardened but fairly dim-witted enemies. Meanwhile the aiming reticule hovers on and off the target and eventually settles, at which point you can pop off a few rounds. Whenever you or your enemy ducks behind cover though, you lose your lock-on and the process begins again, so inevitably battles take longer than they ought to, use up more ammunition than they should, and knock a few points off your health. Even more annoying is the way that you can lean up against walls and shoot round corners, kill.switch-style, but you're still exposed and forced to wait for the sights to settle when you duck out to fire, which neutralises any advantage.