welcome mate
1. try to be very good in coh ( if u are already u got most of the skills for eirr)
2. watch every replay of ur games
3. build up a coy like this(start has 25 pop, rest 7-13 pop per pool)
4. make sure u got at all times 2 pieces of at on field (1 stickie guy and 1 atguns as example)
5. well try to stick together with good players
...