Rated
based on
85,278+
85.3k
reviews
Instant Download
100% Money Back Guarantee
24/7 Support
Platform
-
Steam
Region
-
Worldwide
Release Date
- 08 May 2012
Delivery
-
Instant Digital Download
Call of Duty: Modern Warfare 3 (2011) - Collection 1 DLC PL PC Steam CD Key
Available Soon -
will be available soon
100% Money-Back Guarantee
Rated Excellent
Based on 85,278+ reviews
-
Flawless Purchase to Activation Experience.
A reliable experience from purchase to activation. Consistently excellent.
Verified Buyer
-
Consistently Satisfying Digital Purchases.
Efficient purchase and prompt service—I’ve never been disappointed.
Verified Buyer
-
15 Years of Trusted Service.
I've been a customer for 15 years. Unmatched service and reliable key delivery.
Verified Buyer
-
Quick PlayStation Plus Key Delivery.
I received my PlayStation Plus key promptly, and the setup was effortless.
Verified Buyer
-
Smooth Ordering Process for Gamers on the Go.
The ordering process was smooth and uncomplicated. Ideal for busy gamers.
Verified Buyer
-
Seamless Windows 11 Pro Activation.
Windows 11 Pro worked perfectly out of the box—reliable and trustworthy.
Verified Buyer
Share this product
Add to Wishlist
Instant Download
100% Money Back Guarantee
24/7 Support
Call of Duty: Modern Warfare 3 (2011) - Collection 1 DLC PL PC Steam CD Key
Available Soon -
will be available soon
Platform
-
Steam
Region
-
Worldwide
Delivery
-
Instant Digital Download
100% Money-Back Guarantee
-
Flawless Purchase to Activation Experience.
A reliable experience from purchase to activation. Consistently excellent.
Verified Buyer
-
Consistently Satisfying Digital Purchases.
Efficient purchase and prompt service—I’ve never been disappointed.
Verified Buyer
-
15 Years of Trusted Service.
I've been a customer for 15 years. Unmatched service and reliable key delivery.
Verified Buyer
-
Quick PlayStation Plus Key Delivery.
I received my PlayStation Plus key promptly, and the setup was effortless.
Verified Buyer
-
Smooth Ordering Process for Gamers on the Go.
The ordering process was smooth and uncomplicated. Ideal for busy gamers.
Verified Buyer
-
Seamless Windows 11 Pro Activation.
Windows 11 Pro worked perfectly out of the box—reliable and trustworthy.
Verified Buyer
Important Notice :
Requires the base game Call of Duty: Modern Warfare 3 (2011) on PC Steam in order to play.
Unleash a new level of combat with Call of Duty®: Modern Warfare® 3’s first downloadable Collection! This DLC is packed with four Multiplayer/Survival Mode Maps and two Special Ops Missions, marking a first for the franchise. Players can engage in intense battles in locations like a militarized Central Park and a seaside Italian getaway. Additionally, they can hop on snowmobiles to infiltrate a diamond mine or negotiate the fate of hostages in India. With this Collection 1 DLC, enjoy a variety of combat and co-op experiences like never before. Gift this DLC to a fellow gamer and elevate their gameplay!
Windows System Requirements
MINIMUM SPECS
- OS: Windows XP, Vista, 7
- Processor: Intel® Core™ 2 Duo E6600 or AMD Phenom™ X3 8750 processor or better
- Memory: 2 GB RAM
- Hard Disk Space: 16 GB free hard drive space
- Video Card: Shader 3.0 or better 256 MB NVIDIA® GeForce® 8600GT / ATI® Radeon® X1950 or better
- DirectX®: 9.0c or later
- Sound: DirectX® 9.0c or later
- Additional: Broadband connection and service required for Multiplayer Connectivity. Internet connection required for activation.
-
Go to: http://store.steampowered.com/ and download the STEAM client.
-
Click "Install Steam" (from the upper right corner).
-
Install and start the application, then log in with your Account name and Password (create one if you don't have).
-
Please follow these instructions to activate a new retail purchase on Steam:
- Launch Steam and log into your Steam account.
- Click the Games Menu.
- Choose Activate a Product on Steam...
- Follow the onscreen instructions to complete the process.
-
After successful code verification, go to the "LIBRARY" tab and start downloading.
Ef Customer Reviews
Write a Review
Be the first to review this product!
Why Buy From Electronic First
FEATURES
OTHERS
Guaranteed Authentic Keys
Receive 100% genuine software keys, backed by our Flawless Activation guarantee for complete peace of mind.
Instant Digital Delivery
Your software key is delivered directly to your email inbox within seconds of completing your purchase. No waiting.
24/7 Expert Support
Our dedicated support team is available around the clock via live chat and email to assist with installation and activation.
Hassle-Free Returns
Our 30-day money-back guarantee ensures a fast refund or replacement if your key is faulty or incompatible.
Transparent All-In Pricing
The price you see is the final price you pay. No hidden service fees or surprise charges at the checkout.
Real Loyalty Rewards
Earn valuable points with every purchase and redeem them for real discounts on future software.
Established & Trusted
A proven track record with thousands of verified, positive reviews from real customers across the globe.
Why our Customers Love Us
Rated Excellent
Rated
4.5
out of
5
based on
85,278+
reviews
-
Huge savings on genuine software!
Saved a ton on Office 2021. Got my key immediately and it activated without a hitch. EF is the real deal!
by Verified Buyer
Fast delivery and outstanding support
Bought a PS Plus membership, code in seconds. Had a minor issue, support resolved it fast. Very impressed!
by Verified Buyer
-
Recommended by a friend, now I’m sold
Doubted a deal this good, but a friend insisted. My Windows 10 Pro key arrived instantly and works perfectly.
by Verified Buyer
Needed a key at 2am, got it instantly
Bought Office 2021 at 2am and got my key immediately. I didn’t expect delivery at that hour. Outstanding!
by Verified Buyer
-
Truly worldwide service you can trust
Overseas but still got my code instantly. Xbox Live Gold code redeemed with no region issues. Impressed!
by Verified Buyer
Got all I needed in one go at EF!
Got Windows 10 Pro & Office 2021 far cheaper than retail. Both keys arrived instantly and activated fine.
by Verified Buyer
-
Playing within minutes of purchase
Got a Steam game key cheap. Code came instantly, I was playing within minutes of purchase. Can’t beat that!
by Verified Buyer
Legit keys at a fraction of the cost
Bought Windows 11 Pro dirt cheap. Key arrived instantly and activated without issues. Truly 100% legit!
by Verified Buyer
-
First purchase won me over completely
First purchase, was cautious. Fast delivery and legit PS Plus code won me over. I’ll be a repeat buyer.
by Verified Buyer
Last-minute gifting made easy with EF
Bought an Amazon gift card at a discount. Code arrived in seconds and worked perfectly. A lifesaver!
by Verified Buyer
-
Lightning-fast delivery, great deals
Bought an Xbox Game Pass code at an unbeatable price. Arrived in my email within seconds. Beyond satisfied!
by Verified Buyer
Too good to be true? Nope, it's legit
Windows 11 Pro key seemed too cheap. 80k+ reviews convinced me to try them. Code arrived instantly and worked.
by Verified Buyer
Frequently Asked Questions
Why are your prices so low?
We buy in bulk and deliver everything digitally — no packaging, no postage, no middlemen. Just genuine products at unbeatable prices.
Are your codes/keys really legit?
Yes — 100% genuine, sourced from trusted partners. Over 50,000 reviews and customers since 2007 back that up.
How fast will I get my order?
Almost instantly. 99% of orders are delivered for you to download straight away. A quick security check may delay rare cases slightly.
Will anything be sent in the post?
Nope! Everything is delivered digitally. Your code/key will be sent directly to your email and available in your dashboard.
How do I access my code or key?
Log into your account
Go to Your Dashboard (top right)
Click My Orders
Select your order to view your key(s)
Instant access, no waiting around.
Go to Your Dashboard (top right)
Click My Orders
Select your order to view your key(s)
Instant access, no waiting around.
What if my key doesn’t work?
No stress — if you ever have an issue, our support team is here 24/7. We'll either replace the key or issue a refund, fast.
Join the EF Army for exclusive member benefits
Share