Sounds like your daughter wants to tell you you're not in charge anymore - but she doesn't want the responsibility either. So she's dumping on your brother, who may or may not want to do it.
So the best thing to do with people who don't like how you do things is to let them do it their way. That doesn't mean you have to decide now about going to your brother's, or even that you have to announce that you won't go at all. Take your event off the family calendar, even if in your heart you know that you are skipping your brother's but having your dad over and keeping the 2 disabled kids comfortable. There doesn't have to be an argument about it. Your daughter (I'll call her Nancy") wants to do it? You say, "Great! Have at it!" If it goes well, whether your attend or not, more power to her. If they hate it and start to appreciate all that you do, and realize that "control" is how you pull off a big event, then maybe they'll think of you with more appreciate and respect. You can't control them - only yourself.
Now here comes the hard part especially for someone like you (and like me) who is the big organizer type. When someone asks you what's going on, you say, "I have no idea. Nancy is organizing something I think, so ask her." Nothing more. And do this every time. If someone asks you if you're going, you say, "I have no idea. I haven't heard a thing about a date/time. And I haven't seen an invitation. Nancy is organizing it, so ask her." Period. If they are if you are bringing the ham or the dip or the folding chairs or the Christmas plates, you say, "I have no idea. Someone else is planning it." Every time. Do not waver. Say it somewhat cheerfully, with no resentment (even though I understand why you feel it), and do not include your daughter in your feelings about your brother anymore. If you're pressed, say, "Oh goodness, that's 3 months away! I don't know what I'm doing tomorrow!" But be sure you don't say, "Oh, it's at my brother's house" because that makes you complicit in pressuring him, and you don't want to do that - especially because it may give your daughter the ammunition to call you controlling even if it's not at your house.
If your deployed kids want to know what you're doing, you say truthfully, "I'm not sure yet. I have to figure out Grandpa in the nursing home and your 2 siblings who don't travel well. But Dad and I will figure that out when we see how everyone is doing in December, so you just go ahead and do whatever would make you happy." Try to say that with no edge to your voice, which will be hard. Those kids who want to go to Uncle's house with "Nancy" can do so, and those who want to come to you can do so. Some may do both.
In your heart, you know you're having Christmas dinner in your own home, and it's okay to change the tradition with all the upheaval in your life. There are new circumstances now that your mother didn't have for 25 years, and that you didn't have for the first part of your 25 years. Maybe one big huge event isn't the only way to go, you know?
It might be good to figure out what your daughter is so angry about. Maybe because she thinks this is going to be HER job for the next 25 years and she doesn't want to do it?
FWIW I have a brother I barely speak to, and my husband has a daughter who has never been to our house at Thanksgiving (despite living 30 minutes away) for over 20 years. Sometimes we just have Thanksgiving with us 2 and our son, and it's okay. My son has a girlfriend whose family lives far away, and I'm preparing for the reality that sometimes our adult children have to divide their holidays. I may invite a friend this year who just lost her dad and who barely speaks to her sister. I'll enjoy creating new holiday traditions where others are no longer feasible.
Good luck. Try not to stress about it too much. Just let it be.