A paintball attack is when a team makes their move towards the enemy side of the field, make a surge to the opposing team's flag, or makes a move towards the defending team's players.  There are hundreds of different paintball games and your method of attack may be different for each, depending on the objective of the game or other variables, like whether or not there are bunkers to hide behind.

Paintballs - The Best Bang For Your Buck

Buying the right paintballs depends on several factors.  One important factor is what kind of paintball maker and barrel you use.   Another important consideration is the weather and temperture where you actually play paintball.