Hello OP.... my DS goes to Coopers - I asked him about the cricket facilities (it's not his thing; he was in the dodge-ball team, Havering U15 champions!)
He said the indoor sports hall has two cricket nets & mats. There is a full-size cricket field and square outdoors, plus two artificial areas for cricket practice and another three outdoor full-length cricket nets. In summer-term everyone does cricket in PE lessons and they have full access to all the equipment. Cricket whites are an optional item of PE kit - if you choose not to get them, they can do cricket in their athletics kit. My DS is not sure if every year group has both a boys and girls cricket team.
Stephen Peters (ex Essex/Worcestershire/Northamptonshire player) was a former pupil. Another former pupil is Caroline Powell - she is the sighted ski guide for Jade Etherington. A group of students got to interview them when they won medals at the Olympic games in Sochi.
It's a very sporty school - the majority of fixtures (multiple sports) are played against grammars and private schools. Coopers also has a swimming pool and there is a yearly trip for the squad to Malta. Sports day is held at the Hornchurch stadium, not at the school.
There are 189 places for Year 7 split across eight 'forms'. There are approx 24 pupils in each lesson. Ten places are available based on 'aptitude for sport' - this usually means national level. 24 sports teams qualified for national finals (gymnastics/badminton etc) in 2014-2015.
The school grounds are beautiful. I think it has around 20 acres including a (large) pond and a wildlife garden. As a parent, I've been impressed with the extra-curricular activities. The majority of clubs run over lunchtimes rather than after school. There are 40+ activities; everything from bee keeping and knitting to 'robot wars' model making (on top of all the sports clubs).
If there is anything else you'd like to know about the school, I'd be happy to answer.