Sniper Elite: Resistance

Coupling this with Eyes on the Prize (15G) is a good idea, so choose your favourite rifle and use the loadout menu to pick 'iron sights', removing the scope from the weapon. Playing Sniper Elite without a scope is by no means easy, but you can grind this out in Survival or by replaying campaign missions. Make life easier by playing at the lowest Civilian difficulty, which also has no bullet drop.