Let me first say that after extensive testing of a variety of tactics this is the things i have noticed.
1. You can lose a game you got up to 15ccc and opponent does not have a shoot.
2. When AI decides to go hostile, its hostile. GK on opponent team does quadruple save from 2 yards from Depay, keeps clean sheet after getting bombarded, i lose 4-0 when they got two shoots on goal and GK gets character 7.9. Surely he deserved a 9.5/10??
3. 95% of all goals come from set pices/crosses. You cannot stop oponent from scoring from crosses. I have played with DL WBL and ML but still opponent can outcross me despite close down/tight marking/whatever.
4. It is impossible to hammer a trash team with 10+ goals despite you beeing Barcelona and playing harrowfield hammers with defenders stats 2pace 2 tacle etc.
5. you can use a tactic, dominate the team away win with 5 goals but still lose from same tactic at home with 5+, Surely that is totaly unrealistic despite changing a first team player or two. (say benching rogriguez for Isco).
6. Saving games takes forever
7. Unhappy players you cannot make happy.
8. dident registrate Pereyra becasue of foreign rule, tried to loan him out as i promised, noone wanted to loan him, registrated him next window, he plays all games. he approach me saying he is unhappy i have not loaned him out, but the next day he is happy and sign new contract. 3 players from squad demant meeting and ask me why i have sold Pereyra(??? i mean wtf????)
9. Fringe players or backup players demanding pitchtime despite beeing signed as backup and fielding a lot from the bench.
10. The wages. 1 player gets a raise you better give whole squad new contracts or they turn to sour grapes. oh wait, then the player that is the star of team demand unreealistic demands and want 10x more than he has becasue he is earning the same as a backup player.... neverending story....
RAGE!