If you'd like an IS light that plays like a kit fox, Ive got one in mind:
The COM-2D.
It can play just like a kit fox, but slightly faster, and much smaller:
http://mwo.smurfy-ne...echlab#modified
Now: as for the Jenner.
Don't expect the ammount of damage you get from heavies and mediums, but expect to get lots of destroyed components and stolen kills.
Remember the main key to being a good light pilot is: SPEED IS LIFE
There are 4 main fighting styles used by the Jenner:
1: The circle of death
2: The jousting match
3: Guerrilla fighting
4: Camping
The circle of death is a commonly used tactic by light pilots in order to harass and even kill lone mechs.
Keep a keen eye out for any mechs drifting away from their herd. using your swift speed, rush to them and open fire, circling them. They will struggle to aim at you, but attempt to juke you by quickly turning the other way. Be prepared for this by changing the direction of your circle every now and then.
REMEMBER: DO NOT TUNNEL VISION THEM.
Keep an eye out if their allies have come to aid them. if so, run away.
The Jousting match is a commonly employed method during large brawls with multiple mechs.
swerve and scoot between enemy mechs that are distracted with your larger cousins.
Move in patterns of straight dashes at one mech, then quickly turning another direction. Rinse and repeat.
aim for components that are likely to have large, powerful weapons in them, like the jagermechs arms.
If you find a mech that isn't brawling with another mech, use the circle of death on him.
As for the Guerilla fighter, hit and run tactics at mid range are the way to go.
use this in the beginning of the match, drifting torwards the sides and rear of the enemy.
Get close enough just to do minimal damage, then run away.
remember: STAY ALIVE. you will be a bigger benifit to your team later on.
Finally: Camping.
when an enemy mech is focused on a single teammate, stick to his rear and lay down as much fire as you can on a specific hardpoint. BE AWARE: in this state you are not moving much, and another enemy mech comes to help its ally, be sure to have a getaway plan.