The Bf 109F-4 was a fine plane for it's day, and arguably the
best 109 made. Anyone who flew the 1942 arena before it was
abandoned knows that without the later-war powerhouse planes, the
109 can really do well. Unfortunately, the General Arena has
those late-war powerhouse planes, thus life in a 109F can be
tricky at best.
Unlike other early war planes, the 109F can do quite well. It
has a (relatively) long firing time for it's cannon, and it's
guns are clumped in one spot. Most other planes have their
primary guns in the wings, and unless the target is perfectly
lined up, or at convergence, one wing's guns are going to miss,
thus the 109F's firepower isn't all that bad. But it helps to be
a good shot, and unlike later 109s, this bird has the capability
to allow the 2-5 second tracking shot needed to make planes go
BOOM with those guns.
The key assets of the 109F are vertical maneuvering and
climbing ability. High altitude performance is quite good too,
but the main arena doesn't have many fights above 15,000ft. Climb
above the enemy, and use sucker tactics to get him to climb after
you. When he stalls, turn around and nail him. This is the #1
maneuver used by 109 pilots worldwide in WB. The plane can turn,
in fact it can eat most of the traditional BnZ planes alive
(including the F4U), but all of the TnB planes have significant
turning advantages over the 109f. Thus the 109f's turning ability
can be used to deliver the coup-de-grace, but don't count on it
to win your fight.
The 109F is not the best diver. The controls lock up rather
badly in a dive, thus don't dive unless you have to. This can be
a problem when fighting the Warbirds Divers (Dora, F4U, P51, P47,
P38L, Ki84, etc) as if you don't have handy multiple-trim keys
(such as a programmed button or hat on a joystick), you can
easily compress and auger. Not only do the ailerons lock up, but
so does the elevators, and unless you have everything going to
your plans, it is best to get that nose high, hit WEP and climb
on over. Everyone knows the 109 family can climb, and thus most
won't come back up. And if they do, use the stall sucker-tactic
to make for an easy shot.
The 109 series received quite a boost in 1.11 as the gunsights
were revised. One can now do some pretty good deflection shooting
with this gunsight. It isn't an F4U gunsight, but you can
actually see the target you are shooting when doing a tracking
shot now.
To sum up, use the Bf 109F-4 as an Energy fighter, and like
the F4U, use the turning ability to finish the opponent, not to
win over the opponent. She is the mirror of the F4U, light,
small, good acceleration and climb, but poor high speed handling
and diving ability.