Play thru the FIFA STREET CHALLENGE mode. This team will eventually unlock. This team is actually one of the first you’ll unlock. It unlocks after you complete the “Bronze Gamebreaker Goals Target Scored”, which is 1 Gamebreaker Goal scored within any of the games in Challenge Mode. (These Targets are accumulative.) Once you have unlocked that team, all you need to do is simply play as the team “ Veterans “ on the “ Jungle “ pitch. This works in any game mode.
See “ Challenge Heavyweight “ Achievement Fudge Help