I know many factors can affect game results, like line-up quality, mentality setting, tactics..


Observed something must not do.
A1. Number of your DF >= Number of opponent's FC + 4 ( e.g. You play 5DF-4-1, opponent plays 4-5-1FC)
Note: here AML/C/R counts as MF
A2. Number of your MF >= Number of opponent's MF + 3 (e.g. You play 3-6-1, opponent plays 4-3-3)
A3. Play DMC with no MC and AMC at all, or play AMC with no MC and DMC at all.
A4. Number of your FC >= Number of opponent's DF (e.g. You play 3-4-3FC, opponent plays 3DF-5-2)

Not always true, but generally you won't play well.


Observed something recommended.
B1. Number of your DF = Number of opponent's (FC + AML/R)
or Number of your DF = Number of opponent's (FC + AML/R) + 1
B2. Number of your MF = Number of opponent's MF + 1
B3. Each line has at least one player older than 21 yr-old
Line 1: GK/DF
Line 2: DM/CM
Line 3: AM/FC
B4, At least one player older than 25 yr-old in starting line-up.
B5. Consider to play no FC if Number of opponent's (AML/C/R + FC) >= 5, or opponent's overall quality is 1 star higher than yours.

Again not always true, but generally you play well.