Leemaster777 said:
Like it says on the tin, what game or game series do you think of yourself as an expert at?
Rome Total War. Certainly expert against the AI, and reasonably good against other players.
Though tbh I'm better at the campaign strategy rather than the battles themselves - deficit based zerg rushing in the early game with disposable medium infantry hordes and experienced half-stack cavalry armies usually nets me victory long before the Marian reforms (one campaign I took the entire map before the Marian reforms). And knowing all the little tricks helps as well:
-sending spies to plague cities and then to any of your cities that are overpopulated and to all your enemies
-attacking your own walls when defending them from siege towers so that the falling masonry destroys the tower with loads of enemy troops inside it
-exploiting the wall AI to win in sally battles
-properly exploiting river crossings and mountain passes
-repeated enslave/extermination cycles for particularly rebellious cities
-going for big cities first so that you take them before they hit 'huge' status and are immune to cultural conversion
-ignoring enemy armies in favour of taking their cities
-always having siege gear with your invasion armies but never with your flying columns
-always having your armies on enemy territory so that they're helping damage the enemy even if they're just blocking a strategic pass or whatever
Getting between 5-1 and 10-1 casualty rations against a matched battle AI (sometimes going up to 20-1 if I have an optimum army for fighting that particular enemy) really takes it's toll on the campaign AI, and even on expert where they get massive boosts, you'll still win attritively if nothing else.
Though I have probably got a few thousand hours on the game, it's expansions, and the total conversion mods, so I don't have an excuse not to be very good!