I find it amusing that there is concern for multiple Pershings here, yet in the KT threads "If he gets a second KT it's your fault" lol.
There´s a distinct difference between a vehicle obtained by:
Reaching the end of tech tree,
with a fuel penalty,
no ability to build fuel caches,
for about the highest fuel cost ingame (only topped by the JT)
versus
a call in, no tech vehicle for a faction that has regular income and fuel caches.
So yeah, unless Allied call ins cost 390 fuel, you got
horrendously outplayed, if there are two KTs.