Wait... aw stuff, they are actually going to add new cigarettegy items? God damnit now instead of a 300 to 450 health heavy w/ medic, now it's going to be a 350 to 525 health heavy w/ medic? God damnit valve just stick with vanilla, or if you're going to add new weapons don't make them so fat like a chocolate bar D:
Choco bar + medic do not stack. Max is still 450.
Also most of these are gag / joke items, they're sort of useful but are mainly just filler. The pain train might actually be useful though. The concept is that, if they are downgrades, it won't take a lot of effort to balance them. So enjoy them, but if you need to get serious(lets be honest, this never happens), maybe you should switch back.