The shells explode, that\'s why they can accidentally explode in the turret like they did with that one artillery emplacement when 1 shell went off in the gun and 20 detonated as a result taking out the entire vehicle. Tanks have mounted machine guns which are generally raised from all infantry positions giving them an already distinct advantage. Tanks have thick armor and although there are anti tank mines, anti tank rockets, and other anti tank weapons -- small arms fire is generally what they\'re up against for the most part since anything that can seriously damage tanks, including other tanks, are eliminated with airstrikes.
This war has not been a very good example of tank power given the show of restraint and their need to nail their targets EXACTLY with so little collateral damage. However, if they were authorized to say, level a city, we\'d have just that in a matter of minutes.