As already stated, there is no way to bypass the ping limit
Now for answers to common follow up questions:
it's unlikely to be raised, it was implemented to provide a good game for everyone with decent pings and not being spoilt by those with excessive pings flying around the place
"But what about <insert country here>?"
We're a UK\EU Server, not a global one, while I agree it'd be amazing to have more people from a larger variety of countries, with arma the way it is - it's just no feasible sadly