I have a 15m baby, could I join in an intelligence role and if so, what type of housing would we have to live in?

Anything is possible. You would need to have someone able to look after your child all the time during basic and initial trade training and have the resilience to leave your child during this time. Thereafter you will need to be able to have child care support for normal work and any deployment you are required to go on. If you have sufficient support then all roles and trades are open to you if you meet the entry requirements. On completion of training you will be entitled to military housing at the subsidised rate (it is not free) but cheaper than the equivalent in the civilian housing sector. Childcare in the UK is quite expensive so make sure you can afford it before you apply.