Squad Leader. The Squad Leader is in command of the squad and issues orders to the Fire Team Leaders. The Squad Leader is armed with either the M4 MWS or the M16A4, as well as an assortment of grenades.
Substituting the recommended 8 cups of water with 8 cups of green tea could lead to excess caffeine consumption. Drinking too much green tea can cause you to feel jittery, have trouble sleeping, experience diarrhea or constipation, or have feelings of nausea or a general sense of restlessness.
The experiment: It is a fairly simple experiment and doesn't involve a trip to Lourdes, or the Ganges, which would be a bit of a faff. I have to drink 3 litres of water a day for 4 weeks. That is a lot of water, considering at the moment I probably drink about half a cup. I have a bit of a false start as I spend a week counting loads of tea as 3 litres of water - apparently it has to be the pure stuff, so I regroup and start again, really seriously this time.