Sammael
Adventurer
I meant "the level of teamwork and synergy expected from a 4E adventuring party." Of course there has to be some teamwork, but it appears to me that 4E is so tactically oriented that if you don't utilize all synergies in just the right way, you won't survive.
Frex, for my usual group, it's usual for a fighter to charge into a group of enemies, thus preventing the wizard from fireballing the group. A 4E adventure may assume the controller would use his daily AoE to clear the minions and if this doesn't happen, the challenge gets a lot tougher REALLY fast. In 3.x, the wizard generally has other options that he can fall back on, and the CR/EL system doesn't require any single role to be present in the party. Note that I'm making these assumptions based on what I've read about 4E on these forums; I've never had the opportunity to play 4E at anything beyond 1st level.
Frex, for my usual group, it's usual for a fighter to charge into a group of enemies, thus preventing the wizard from fireballing the group. A 4E adventure may assume the controller would use his daily AoE to clear the minions and if this doesn't happen, the challenge gets a lot tougher REALLY fast. In 3.x, the wizard generally has other options that he can fall back on, and the CR/EL system doesn't require any single role to be present in the party. Note that I'm making these assumptions based on what I've read about 4E on these forums; I've never had the opportunity to play 4E at anything beyond 1st level.