Most Points in a Single Game
This requires all models to participate in a continuous game on one table interconnected or otherwise. All models must be painted (3 colors + based) and the game must last 4+ turns over an unbroken time period (eg-with some breaks, but no "pause and come back the next day").
(The previous record for the Biggest Apocalypse Game was 382,000 by Siegeworld)
Same as Most Points in a Single Game, but models don't need to be painted, and one or more discontinuous tables. Anything goes so long as it is interrelated and simultaneous. No turn requirements.
(The previous record for the Biggest Apocalypse Battle was 520,000 by GMI games)
Same as Most Points in a Single Battle, but allows for multi-location play.
See Most Points in a Single Battle (single location). Same restrictions apply. This record is anything goes so long as it is interrelated and simultaneous. A miniature is counted as any piece which has its own base or does not use a base. Essentially, if it can be moved on its own (thus a swarm base is a single miniature).
(The previous record for the most minis in a Single Battle was 6,500 by Siegeworld)
Most Tank Models in a Single Battle
Anything with an AV, MCs, and GCs count as one, so long as they're painted. Single battlefield as per the first record and no turn limit.