Well i am glad that other people agrees me and u can aproach this game in a different manner more logical and more versatile when it come to tactics,and if this strategy is applied correctly its impossible to not have better results compared with using just 1 downloaded tactic from this forum.
Having in mind what i said in OP im starting an experiment in this direction playing as manager in Romanian Division starting from 2nd league and using ACS Poli from my native town(im promoted already with only 2 looses all season but yeah it was expected since media prediction is 1) and trying to getting my team better with every year.
I made 3 tactics to insert them for training and none of this formations will be used its just for learning familiarity of different aspects of tactics such as formation on pitch mentality,passing,style,creative,freedom,closing down,marking,tempo and width.
#Tactic nr 1
Formation:4141
Mentality:Attacking
Creative Freedom:Very Fluid(Be more expressive ticked in TI)
Passing style:short(with retain possesion,pass into space,work ball into box ticked in TI)
Closing Down:Hassle opponents
Marking:Man Marking so Use Tighter Marking is unticked because this would mean zonal marking if ticked
Tempo:lower tempo
Width: Play Wider
Tactic nr 2
Formation:41221(451 with advanced wingers formation)
Mentality: Deffensive(i am not a fan of counter mentality so i will pick who will make the forward runs depending on opossition while being even more safe by having defensive mentality)
Creative Freedom:Very Rigid(combined with be more expressive)
Passing style:Mixed(with retain possesion,pass into space,work ball into box ticked in TI)
Closing Down:Moderate(so hassle opponents and stand off remain unticked)
Marking:Zonal Marking(so use tighter marking is ticked)
Tempo:higher tempo
Width: Play Narrow
Tactic nr 3
Formation:4231
Mentality:Control(its nice to choose between control and attack mentalities i preffer to have 2 offensive mentalities rather than 2 deffensive to train)
Creative Freedom:Balanced(combined with be more expressive)
Passing style:More Direct(with retain possesion,pass into space,work ball into box ticked in TI)
Closing Down: stand Off opponents
Marking:Zonal
Tempo:Much Lower
Width:Normal(neither narrow or wide)
So i have this 3 tactics to train different aspects of tactics and probably will be used very rarely since what i will use is a "cocktail" from all 3 tactics depending on whatever the opossition the weather their weaknesses and so on.For example if i have all this 3 tactics familiarity 100 % on everything than i can make a tactic 4231 to go for a big win against some small team home that play 4411 and i will call it 4231 vExtremeOffense1.Also i will save this tactic in tactics folder to can have acces to this tactic in case circumstance will be similar and ill decide use again this.
4231 vExtremeOffense1 will have following
Formation:4231 (obviously

)
Mentality:Atacking
Creative Freedom:Very Fluid(Be more expressive)
Passing style:short(with retain possesion,pass into space,work ball into box ticked in TI)
Closing Down:Hassle
Marking:Man Marking
Tempo:Low
Width:Wide
This tactic is just an example since as i said variables that i can use allow me to use 6k+ tactics without loosing familarity(or very close to 100% but from my tests it looks u dont loose any familiarity).Also i will start the match with a tactic from those 3 trained to confuse Ai and when match starts i will switch to 4231 vExtremeOffense1 designed especially for them

.