You have 6 weeks to physically prepare yourself for the zombie outbreak.
Your starting point is at your residence, so base your training off where you live, and for those 6 weeks, what equipment you have access to,
The zombies will run at a average jogging pace, but will NEVER tire. As usual, a kill shot to the brain is the only way to permanently kill them and bites and scratches, that result in the transfer of zombie blood, turn you into a zombie.