Hrm. 32 people, eh? Sounds like MEMBER[0] to MEMBER[31], which requires 5 bits. Now, double that to ten bits, then apply some IPv6 math ("if we double the number of bits in the address we have twice as many useable IPs") and we have 20 bits for members.
MEMBER[0] to MEMBER[1048575].
How many people play AH? Ever?
...one side effect of the 32 body limit is it prevents a single squad from dominating the entire arena.