BP (Bonus Points?): 4 bytes value stored at offsets:
0x0000121C
0x0000121D
0x0000121E
0x0000121F
To unlock all tanks set to 01 the following offsets:
0x0000009E
0x00000138
0x000001D2
0x0000026C
0x00000306
0x000003A0
0x0000043A
0x000004D4
0x0000056E
0x00000608
0x000006A2
0x0000073C
0x000007D6
0x00000870
0x0000090A
0x000009A4
0x00000A3E
0x00000AD8
0x00000B72
0x00000C0C
0x0000121C
0x0000121D
0x0000121E
0x0000121F
To unlock all tanks set to 01 the following offsets:
0x0000009E
0x00000138
0x000001D2
0x0000026C
0x00000306
0x000003A0
0x0000043A
0x000004D4
0x0000056E
0x00000608
0x000006A2
0x0000073C
0x000007D6
0x00000870
0x0000090A
0x000009A4
0x00000A3E
0x00000AD8
0x00000B72
0x00000C0C