A couple of people have said that it would be OOC for their agents not to have very thorough charge lists and to want to read them out as such. That's fine, but it still doesn't mean it all has to end up in a block at the end of the mission. Several reasons:
1. They have partners, who can goad them to speed things up, or interrupt, or otherwise break up blocks of charges into smaller, more manageable bits.
2. There's the Sue/possessed canon/whatever to consider. Is the culprit you're charging really just going to sit still and listen patiently while the agents explain why they've been given a death sentence? Maybe the Sue breaks her restraints, or the wraith possesses one of the agents, or the canon characters attack, or something happens to cut the agents short.
3. Related to the above, there's no reason the meticulous agent can't be thorough in writing, but sum up as they're reading aloud. Best of both worlds, there.
4. Ultimately, it's still up to you, the writer, to make your story fun to read. If your meticulous agent's charge list is bogging down the mission, your readers aren't likely to care very much for how well you're keeping your agent in-character.
My personal rule for writing charge lists is to do it on the fly. If I don't remember a charge while I'm writing the list at the end, it probably wasn't that big a deal, and can go without being mentioned explicitly.
I have one agent who remembers everything and another one who's concerned with getting the Duty right. In the first case, it's pretty easy: remembering everything does not equal saying everything. Only the most important/personally aggravating things get expounded upon.
In the second case, I once wrote an insanely long, multi-paragraph, itemized charge list for him, because he's just anal enough to do it. In the end, though, I axed it and cut it down to one paragraph, because by that point he was just too angry to read something that long. (Plus a dragon might have eaten him if he'd really done it.) I included it as an extra at the end of the mission, though, so if you want to know how bad an overly long charge list can get, just scroll down to the bottom. I will never do this again.
So, to sum up, you should never have to sacrifice storytelling for characterization. As we seem to agree down in the "What makes a good OC?" thread, if the character isn't serving the story, something is probably wrong.
~Neshomeh