Here's mine
6 - Siege Pulse - Damage, Damage Protection, Number of Shots
6 - Hex Shield - Pulse, Shock, Damage Synergy
0 - Sentry Turret
6 - Passives - Weapon Damage, Stability & Ammo, Weapon Damage
6 - Fitness - Durability, Speed Boost, Power Transfer
I don't like the big shield as it really blocks off many fire lanes for teammates as well. I use the small one situationally and for the damage boost it gives.
Siege Pulse is a great room cleaner! Buddies go down? Walk leisurely in and blast the mooks, help up your team and continue to shoot and mop up. I mostly use incendiary ammo and pull off quite some FEs with Juggs.
Passives tree is self-explanatory.
Fitness is debatable, I prefer the durability.
There is no sentry turret.
Playstyle-wise:
I shoot a lot. Gotta prime enemies for FEs and highlight the cloaked enemies for my mates. If I see a juicy primed target I let go some siege pulses.
Hex shield is mostly used in CQ with its additional direct damage and damage boost it offers. I also use it to divide enemies massing around me. I find the small one sufficient to gain right hand advantage, especially being on higher elevations.
I tend not to go into melee and rather beckpedal from enemies if they get close. Getting swarmed by Brutes and Banshees while under ranged fire is a bad situation even for Juggs. Even more so considering his speed. I try to position Juggs in a way he attracts decent attention without getting totally swarmed
Damage output isn't usually great most of the time but it peaks in situations when Siege pulse is used and detonates explosions. With the pulse throwing enemies to the ground it is an excellent CC power.
Grabbing: I use it to strip shields off, for phantoms, as the ultimate attention getter (Sync killers) preferably during objectives and of course to replenish shields. I also use it to get rid of enemies whose numbers that exceed safety protocols - it staggers them long enough to finish them, drop a hexy shield or retreat around a corner (usually).
Can't wrap my head around it, but I often saw Juggers grab enemies while mates were lying around them, bleeding out. I mean, it's OK to grab when you let loose instantly to stagger them. But why wasting so much time in killing a mook while you could revive a guy is beyond me. Revive a guy and get another gun to take out the enemies.
Light melee: It staggers, so I use it frequently when my team is getting swarmed or I need to get out or through enemy concentrations. And for high-fives of course. Show some respect.
Weapons: I mostly use high-ROF assault rifles. Lancer, PPR, GPR and Typhoon all worked out OK for me. I tried the GPS and wasn't impressed at all. Got a Crusader X and used it with good effects, recommend that for platinum but for gold I rather take an AR and I play mostly gold.
I try not to totally wreck my cooldown as I frequently use the siege pulse.
All in all, if I don't go totally nuts and have normal people playing with me, Juggs still dishes out decent damage. With good players, equipped with high level stuff, I find myself rather lower on the food chain. I don't complain, less work for me. There are enough other games where I have save a lot of asses dropped by grenades and whatnot.
I also often notice people ignoring geth bombers, I guess it's because their small model and ridiculous dodges. They are a nice thing to grab, too.