publish Exchange 2016

1) Is this best/recommended way of publishing exchange 2016/2010 in co-exitance using F5 for external ?

2) As per external network team, they are using firewall module in f5. what do the do to publish exchange ? 3) Is there a F5 document to publish exchange for external access ?

4)can they publish infernal F5 VIP directly ? or they have to do NATing with external IP ? or publish internal exchange servers directly using external F5 in DMZ ?

Can some one advise the recommended F5 method in such scenario.( F5 internal and F5 external.)

so that I can ask our network to look into it and implement the same. kindly note that we running in exchange in hybrid mode with office 365. we need our internal exchange servers to connect to office 365 servers also using F5.