Zombacus

Map select - Some maps have specific drops for their map/game, for example Origins has "zombie blood", and Black Ops 4 has "Full Power" and "Bonus Points".
Extras - Depending on the strategy you are using you have the chance to optimize the drops you get in the game this can be done by not moving the box, not using the specialist, playing in an area with a certain amount of barriers, etc. So Ive put this option in so that it will skip the drops that wont be in your game.
Drop tracker - Here you just have to click the drops you've already had in the game, once all items have been selected they will default back to unchecked and your previous drop cycle will be displayed below just as a reference as it can be easy to miss the cycle at times, this also comes with a reset button to remove all checked drops and recent drop history.
Boss drops - Some maps have bosses/special zombies and depending on what map you are on, their drop can count towards the cycle so be sure to take that into account.

Note - This is still in development so some images and games will be added soon, if anything is incorrect please let me know.