Firestorm 20 - Cap on offense/defense POIs?

POI overview based on ccta-stats.com:
https://docs.google.com/spreadsheets/d/1cy_V-wtudsCKKe5LydE1J8JGmeSs7YtBV5xJvRyu15o/
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tier 55 (4,992,500,000,000 score required) and rank 1 total bonus (max): +400% firepower and 3,048,000,000/h resources

u also can get +400% firepower starting with tier 39... if rank 1 though.
tier 39 is also max firepower bonus with tier system 1... difference is that in most cases u can't reach higher tiers (not enough POI score available in that world)
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firestorm 20 ruleset (POIs):

• tier system: 2 (different from the usual one)
• bonus multiplier: *2

Tier system 2 (required score):

1

5

30

100

300

1,100

2,700

5,600

9,000

15,500

24,500

40,500

60,500

94,500

155,000

270,000

425,000

675,000

1,010,000

1,685,000

2,700,000

4,500,000

6,750,000

10,100,000

15,750,000

24,750,000

38,250,000

56,250,000

78,750,000

105,500,000

157,500,000

315,000,000

517,500,000

697,500,000

1,046,000,000

2,250,000,000

3,375,000,000

5,062,500,000

7,593,500,000

11,395,000,000

17,100,000,000

25,650,000,000

38,475,000,000

57,710,000,000

86,565,000,000

129,850,000,000

194,750,000,000

292,200,000,000

438,300,000,000

657,450,000,000

986,150,000,000

1,479,200,000,000

2,218,850,000,000

3,328,350,000,000

4,992,500,000,000