Anyway, not knowing the Marlowe version I was pleasantly surprised when it started thusly:
Not marching in the fields of Thrasymene,Thrasymene refers to the Battle of Trasimene where Hannibal and the Carthaginians (Carthagens) destroyed the Roman army in one of the opening encounters of the Second Punic War.
Where Mars did mate the warlike Carthagens;
Nor sporting in the dalliance of love,
In courts of kings where state is overturn'd;
Nor in the pomp of proud audacious deeds,
Intends our Muse to vaunt her heavenly verse:
Only this, gentles,--we must now perform
The form of Faustus' fortunes, good or bad: