Heroes spawn next to the first King Of The Hill spawn, always. There is a Hammer just outside of the spawn, and another one in the hill. The only times I've seen it sit there was when I was playing newbies, so maybe you've just been lucky with who you get matched against. A person with ESE can now carry a Hammer loaded with 12 shots as soon as the game starts, that's more than enough to win the round.
Anyway, there seems to be two Hammers in every mode now, with the exception of Free For All, Classic, Co-op, and I'm assuming Elimination.
Yep, and the new one above where the Riot Shield spawns, (In between the T-Bolt Tower and the other Hammer spawn). In Deathmatch, Heroes get two Hammers, a T-Bolt, a Riot Shield and a slightly better chance of picking up the SAS-12.
If they plan to keep the spawns this way, and give heroes more power weapons, the least they could do is bring back the Mag-5 that was removed after the Subway beta, villains always got to that it first.