The highest wave I have reached in the arena without using any revives is 26. By that time, I got killed off by a swarm of Piper minions before I got the chance to use a medikit.
The weapons I use are as follows:
C16 Auto or Dominator
Streetsweeper or Wonder Twins
Auto Sniper Rifle
Golden Hawk or Desert Hawk
So, what wave have you already reached? Cheers.
The Wolf Pack are my friends, like all others whom I have the pleasure to know. You have my respect because you deserve it - the same way I expect this respect from you as well.