30 aircraft may seem like a lot, but as long as you keep the Strela-3 launcher in your secondary slot at all times, you can make short work of this challenge. When you play any of the team-based matches, the opposing force will end up using several spy planes, care package helicopters, and attack choppers over the course of one game. The Strela-3 locks onto aircraft and carries 2 rockets. Enemy spy planes can be taken down with a single shot, but the other flyers require two – one to deplete the defensive flare and one to destroy the aircraft.

Destroy Sentry Gun: Destroy 1 Sentry Gun.

If you haven’t completed this task by chance during normal match play, you may have to orchestrate the perfect circumstance. Change one of your Killstreak rewards to Sentry Gun, and enter a team based battle. Once you earn the Sentry Gun Killstreak, make sure to throw the smoke signal somewhere that will tempt the enemy into picking up the dropped package. Keep your eyes on the enemy that ends up picking up the Sentry Gun, or use the Hacker perk to detect where the gun is deployed. Once you finally track the turret down, use your knife to knock it down from behind. Anyone else think you deserve an achievement/trophy for that?

SLEIGHT OF HAND PRO 

Fast Hands Kills: Reload and finish off the enemy you wounded 10 times.

Above: Notice the government issued butterfly

You only need to put one shot into an enemy in order for the game to consider them ‘wounded’ in this case. A good strategy is to equip an SMG and play some free for all on the smaller maps (especially Nuketown or Firing Range). If you have the drop on an enemy (they don’t see you but you see them) it is very easy to put one or two rounds into them, reload (Sleight of Hand + SMG will have you reloading in the blink of an eye), then finish them off.

NINJA PRO

Plants: Plant the bomb 10 times in Demolition, Sabotage, or Search & Destroy.

This is one of those challenges that would normally come in time, but who likes to wait? The trick is to hide near the target area during Demolition and stay quiet. After the bomb is initially armed, wait close to the area and allow the enemy to disarm the bomb. Now either wait for the enemy to move away, or swoop in and kill them. You can then re-arm the bomb. Rinse and repeat. You may not have success every time but as long as you allow the enemy to continually disarm the bomb while you keep a low profile nearby you’ll have completed this challenge in no time. This tactic works well on Array or on Grid as seen above. You can follow these tips to accomplish the Demolished challenge for Flak Jacket pro as well. 

LIGHTWEIGHT PRO

Offense Medals: Get 10 Offensive Medals by killing enemies near their objective.

You could accomplish this over several games of Domination by killing enemies who are trying to capture one of your areas. Or you could do it the fun and easy way, and that’s by playing CTF. As long as you are holding the enemy flag, any kill you get counts as an Offensive Medal. Booyah.

FLAK JACKET PRO

Throwbacks: Throw back 5 enemy Frag Grenades.

We found this to be one of the hardest challenges to complete. You’ll need to throw back 5 enemy frag grenades. Too bad a lot of players prefer Semtex. Fortunately you don’t have to be effective with (or even survive) the throwback – as long as you get your hands on the enemy grenade it counts. We found a couple of decent methods for completing this challenge if you’re willing to sacrifice your K/D ratio for a few rounds –

-Method 1: Camping up high

Camp in any sniper-post area like the high tower on the firing range, and keep your gun trained on the entrance while crouching or prone. Fire a few rounds into the air and it won’t be long before the other players know you’re up there. With the only entrance locked down you’ll be bombarded by grenades in no time. Just pray some of them will be frags. The normal flak jacket perk will protect you from most of the Semtex and crossbow explosions while you wait.

-Method 2: Put yourself in the midst of it

To make this easier for yourself, play in Hardcore mode. You don’t have to aim as carefully when your enemies have diminished health (anywhere will score a kill), and you can use any of the sniper rifles. Note that you can only get the medals if you are using a sniper rifle (FAL and M14 wouldn’t work). If you’re not used to using sniper scopes, throw an ACOG sight on your sniper rifle.

SCOUT PRO

One Shot Kills: Get 50 One Shot, One Kill Medals

To make this easier for yourself, play in Hardcore mode. You don’t have to aim as carefully when your enemies have diminished health (anywhere will score a kill), and you can use any of the sniper rifles. Note that you can only get the medals if you are using a sniper rifle (FAL and M14 wouldn’t work). If you’re not used to using sniper scopes, throw an ACOG sight on your sniper rifle.

WARLORD PRO

Grenade Multi-Kills: Get 1 multi-kill with Frag or Semtex.

If you’re trying to complete this challenge we recommend you equip the scavenger perk, that way you can continuously pick up grenades from fallen enemies as you try over and over to get a multi-kill. It’s also a bit easier to pull off with Frags since you can cook them before throwing. At least two kills at once are required to complete the challenge.

-Method 1 – Blind throwing

Yep, just aim skyward and let it rip. On a small map (especially Nuketown) you can toss Frags all the way over the other side of the map. On team events there’s a decent chance you’ll catch a couple of enemies moving together along the sides of the houses if you throw a grenade ASAP once the round begins.

-Method 2 – Go for the objectives

In Domination, the B objective is usually the most hotly contested due to its central location. Make yourself a distant observer and chuck a grenade at the enemies when they swarm the objective.

STEADY AIM PRO

Quick Melee: Melee two enemies consecutively within 5 seconds.

If you’re having trouble getting this one, there is an alternative running around like a psychopath swinging wildly. Equip the following: the Lightweight perk, the Marathon perk, the Ballistic knife, and the tactical insertion. Join a game of Ground War (preferably Domination) where there will be plenty of enemies to kill. The idea is to flank one of the areas that the enemy is protecting, preferably the B objective. You can also get clever and drop your tactical insertion point around an objective while your team has control, run to somewhere safe, then intentionally die while the enemy has control to spawn right in their midst. As you can see from the above screenshot, this tactic worked very well. Note that the melee strike with the Ballistic Knife has a much quicker recovery time than the normal knife.

Hip Fire Kills: Get 150 hip fire kills using Steady Aim.

This is quite difficult to pull off in Core mode – it’s much easier to do it in Hardcore mode. The lower health means it takes fewer hits to bring an enemy down, so grab a powerful SMG (AK47u), dual-wield some of the smaller SMGs, or use a shotgun and have some fun.

HARDENED PRO

Equipment Shot: Destroy 1 piece of enemy equipment through a wall.

A fairly easy challenge when you set your mind to accomplishing it. Most players lay claymores just inside doorways. When you manage to spot one before actually stepping on it, move so that the doorframe is between your gun and the claymore and fire away. To make it even easier, equip the Hacker perk so that you can more easily spot mines through walls.