For those that want this quickly in solo (Note you may choose which ever map you are most comfortable/familiar with):
1) Play a few games to rank up enough to gain the perk "Secret Sauce" at level 6.
2) Before going into your next game equip it in the Danu perk slot in your class customization.
3) Now select the map Voyage of Despair on ZOMBIE RUSH mode and launch the game. We are running this mode because all purchases are free...even Pack-a-Punch and the mystery box.
4) Kill the first few zombies, get a decent weapon, keep a couple zombies and head to the Danu Statue downstairs and begin spamming it for these (minus the 3 currently in your perk slot layout):
Stone Cold Stronghold
5) Eventually you will be forced around the map defending areas. I recommend knowing the map layout as you must navigate the ship to travel to the Rush Defend points. If you don't make it in time you will begin to take damage. Killing multiple zombies results in extra life drops, Instakills, and Nukes so keep an eye out! Pack-a-Punch will be opened early on so pack the KN and your second gun of choice and continue traversing the ship to find your last three perk statues.
Make use of your elixirs and save your special weapon use until you are fighting the tougher zombie types.
Simply grab the last three perks you have equipped and you'll pop the achievement. Perk statue locations are Forecastle (Danu), 1st Class Lounge (Zeus), Engine Room (Odin), and Dining Hall (Ra).
This takes about ~10-15 mins.