Medkit pickup implemented with same function as original game where picking it up heals you by the same amount as your health's current value, while also being able to function like the soulsphere where it can go over max health.
I've even matched the max bonus health values for each individual character to the originals with the help of A_JumpIfInventory and DummyInventory wizardry to get it working as intended.
And starting a new game now takes you to LEV00 rather than MAP01.