This achievement is made very easy by a glitch: run a local co-op game in Survivor mode on any stage you want. Let yourself be killed (your 2nd controller too). Without returning to the main menu, continue by launching the "Cargo" level (Co-op assault). Let yourself be killed, return to survivor mode (choose the same stage as before) and the achievement is yours. Doing this you will also get "Co-op campaigner" achievement.