Command and conquer tips

OK.... I desperetly need some tips/help in Command and Conquer: Red Alert 3. I bought the game about two days ago, played a skirmish battle with an easy bot and he destroyed me.I always play as the Allies, so i need some tips on when to build things and what things to build, what kind of troops i need and vehicles and planes also. this is an all land map.and when i should attack the enemy.Command and conquer tips
well your base units are solid and cheap as the allies javelins can make short work of most stuff but peacekeeprs healp them deal with anti-infantry threats which they are dreadful against. in mixed terrain levels having assault destroyers can be useful. mirage tanks are also great. aerial units of importance are century bombers and lightning fighters.