To begin with, the Immigration Rules change two to three times a year. So, the advice below is based on current rules, but may be out of date by 2018.
If your spouse gets ILR based on T2G, you need to complete five years as dependent including your time as T2G dependent to get ILR. So, in your case, you are looking at June 2020.
If your spouse gets ILR based on LR, you will need to apply for FLR(M), your clock will reset and you will need to spend five years from your initial grant of FLR(M) to apply for ILR.
Your T2 ICT stay would not count for the purpose of acquiring ILR.
Your daughter (assuming that she was born abroad) will have the same status as that of the less-privileged parent. In this case, that would be you, not your husband.
Rambo_ILR wrote:After he becomes BC, I guess there is a 3 year route if you are still under his dependant – I am not too sure about this though.
This causes a lot of confusion. There is no three year route if your spouse is a British citizen, because you need ILR to apply for citizenship. And ILR takes five years anyway.
But, if your husband is a British citizen, you can apply for naturalisation (and your daughter for registration) immediately after getting ILR. You will not need to wait for a year.
I am not a lawyer or immigration advisor. My statements/comments do not constitute legal advice. E&OE. Please do not PM me for advice.