I need direction to ikeja Cantoment from Berger via public transport.

It's very urgent!

Stop at ojota and take bus or taxi going to Ikeja from there

Scatterscatter:
I need direction to ikeja Cantoment from Berger via public transport.

It's very urgent!

If I'm correct Ikeja Cantoment is the Sam Ethan Airforce Base(not sure though, it can be the one at Marland Ikeja) which is at PWD Ikeja on your way to Agege from Oshodi.

If correct, take a bus from Berger going to Oshodi, drop at Oshodi (seek direction from traders if ure new to Oshodi) and go enter another bus going to Ikeja Along drop at PWD.

From Berger,
i. Take Ojota Yaba bus and drop at Maryland busstop, take the road to your right hand side, take another bus and drop at Cantoment.

ii. Take Ikeja underbridge from Berger, drop at underbridge, take a Yaba bus and drop at cantoment direct.

iii. If you use an Android phone, use Google maps to know the route that'll be fastest giving traffic conditions can vary for both suggestions above.