Shields don't need any more advantages over Armour get the hell out with your logic.

Yes.

But only if the only 'repping' it does is jumpstart the shield regen, so when you lock someone and fire it reduces the remainder of the time before the shield regen starts working and their shields begin to repair themsleves, and that's all the tool really does. Maybe even gives them a recharge bonus. Then the logi could bounce around jump-starting shields and then pull out an armor tool to clean up. This seems fair seeing as how shields already come back at rep tool-like numbers.

Alternatively they could function the same way armor rep tools and immediately start giving out more shields, but I think that would be way overpowered, because of the natural recharge. The advantage of repairing damage being taken in real time too and mitigate it (like the active tank it's meant to emulate) is kind of the signature feature of Armor tanking. The only way I can see this being balanced is maybe really long long cycle times (in between boosts) or some sort of stunt to natural shield recharge, like after being repped your shields wont come back by themselves for 30 seconds.

However, a shield repair tool that works identically to the armor repair tool should be implemented that works on vehicles only. I can't get away with riding on Caldari tanks at the moment and I would like to change that.

It should work on shielded vehicles only.

If infantry get one, then shield recharge rate should be level with armors.

I believe there shouldn't be any shield reppers because shields can already spring back up on their own. I mean shields already have rechargers and regulators to make their already in placed recovery better. While Armor needs a module or another person to recover while shields already recover on their own and can just be enhanced.

Caldari Logis now get even more shield recovery with their bonuses to regulators.

OP, you say "Caldari Logi" as if there are entire teams of people running around only in Caldari shield suits. While that's a nice idea in the abstract of faction warfare, it only will ever happen in a DUST marketing vid.

The reality is that any team is a cluster-mix of all suits, both shield and tank types. Even the same squad all four racial variants are likely. Even the same PERSON probably has a different racial suits to use in various situations.

"Caldari Logis" will need to rep Amarr and Gallente troops just as often as Caldari troops. Do you deny armor reps to your blueberries if they are the wrong race? Do you deny armor reps to your greenberries if they are the wrong race?!? If so, I applaud your dedication to roleplay as you eschew little things like "winning" and "scoring". And I never want to play on your team.

Furthermore, there are plenty of non-rep tool equipment choices already. Why does a Logi need a rep gun at all? If it's not useful then use uplinks, nanohive, healing hives, nano injector, active scanner, remote explosives, and proximity mines. Choose any 4. You can even double up on the hive and uplinks.

Lastly shields are fine as is! They repair on their own quickly and naturally. Armor doesn't repair naturally, and much more slowly than shields after you mod up. So the Logi sees my shields are down, rushes to me, equips his gun, and whoops! Already full, no WPs for his effort. There is absolutely no function or synergy this piece of equipment provides to the Logi. I'd much rather the Logi turn the corner and fire on the reds while I catch my breath and reload for the 4 friggan seconds it takes for my shields to rep themselves.

This is a terrible idea, but...

A shield transfer gun would be kind of cool, like you lose your shield power and give it to somebody else. This would encourage Cal-logis to equip better regulators and also use their race bonus to greater effect.

But until armour is fixed, it should remain on the back burner :)