Finding keypad codes is an optional side-objective in Modern Warfare 4's Stranded campaign level.

Found dotted across the map, each keypad includes a note to help you deduce the sequence. Most you can work out with a bit of thinking, but if one has you stumped, or you prefer to simply get in, grab the Yellow Supply Cache and swiftly move on, then looking up the solution is an option.

This guide features a list of solutions for each Stranded keypad puzzle in Modern Warfare 4 in alphabetical order - including the two tricky Hidden Bunker codes.

Base Camp keypad solution

Near the radio tower, you'll find a keypad note with previously used codes 0006, 0012, and 0018. The correct code is 0024. You'll find supplies inside.

Big Sign keypad code

After given the clues 1000, 1200 and 1230, the solution to solving the puzzle is 1234. Your reward includes a Yellow Supply Cache.

Cliff Near Basecamp keypad code

The clues given by previously used codes are 9300, 6400, and 3500. The code is 0600. Inside you'll find a Yellow Supply Crate.

East Village keypad code

The previously used code clues for this are 0012, 0034, and 0056. The correct code is 0078. Your reward is a Yellow Supply Crate.

Farm Field Hidden Bunker keypad code

The clue is all the Outpost numbers of the Logistics Stations added together, and the answer is 0330.

Island Hidden Bunker keypad code

The clue is the sum of all Infantry Checkpoint outpost numbers. The answer is 0008.

Small Island keypad code

The clue shows three previously used codes: 3456, 4567, 5678. The answer is 6789. You'll find a Yellow Supply Cache inside.

South of Jamming Station keypad code

Following clues 5903, 6805 and 7707, the answer is 8609.

Best of luck unlocking each code!