At least that scam is getting a lot of exposure now (and being remedied for current cops); sadly, the only thing driving much of the pension reform is the clamor from current non-white residents about how much money these formerly-white areas owe to primarily white retirees (leaving nothing for them to fund schools or pay new cops).
An acquaintance recently retired as a cop at 46, after 25 years on the job (he joined before college requirements became the norm); this guy will probably be a drain as a retiree for longer then he even worked. This problem is literally destroying NJ; the disintegration into a Third World mess is irreversible, with Third Worlders being trafficked here to replace the fleeing American taxpayers and their employers (to avoid the spread of Gold Rush-type ghost towns). Those states with viable economies will be subsidizing these newcomers for everything.
The federal situation is slightly better. Payouts are much lower and the retirement ages are higher. Then you come back to the funding of the pensions. On the books federal pensions look well funded, but that is only when you ignore the massive deficits and debt being amassed by the federal government.