This map is set in a graffiti-laden London shipyard just outside the big smoke. Use the shaded murky areas near the furnaces in the industrial zone to surprise foes and take note of the climbable crates littered all over. While being quite small geographically, there are patches of no man's land where snipers can lay waste to others. Gun Runner is an entertaining map set in an industrial basin.
The sides of the map are also useful if you wish to sneak down using the cover and get in behind the enemy team who are running to the busy middle section. As ever, high ground is a great boon, so you make the effort to try and get on the second floor of the houses in the tight alleyways so you can look down int the action and pick off those who run in guns blazing. The Grazna Raid map is great fun thanks to its mix of open-plan roads with claustrophobic city alleyways.