As someone that once considered "would i need some sort of wheeled/tracked chair to keep playing", I'd say fuck yeah, to me airsoft is a competitive combat sport, you're either winning or not winning, losing is too negative a term, especially if you're also battling a disability, & knowing you've beaten your opponents fairly & squarely just makes the victory sweeter.
& if your not victorious, that's cool too, just know you tried is worth turning up for.
Just don't mag dump a guy in a chair, that's not cool.