Hi Larry - I don’t play as often as I used too but for many years I played every weekend and on a few competitive teams. I’m now 45 and still go out occasionally and it is a tremendous rush and a lot of fun. You’re going to love it. Some comments/tips:
The paintballs can/will sting but it isn’t anything to worry about. Or, you can use that worry as motivation to not get shot. If you wear multiple layers you’ll probably not even end up with any welts unless it hits an open area or thinly covered area. Remember, only broken paintballs count. No paint, no out! (In other words, always check the hit to make sure the ball broke before you call yourself out) When you do wear multiple loose layers, you tend to get more ‘bounces’ where the balls don’t break so be alert.
The paintball markers (“marker” is the term, not “gun”) you rent will not be terribly accurate nor will they fire particularly fast. This will somewhat work to your advantage because you’ll probably have to buy paint there at really inflated “renters” prices. There are markers that are very accurate and shoot incredibly - even mind boggling - fast. Try get on a team with the guys who have those. You’ll still use more paint than you think so have extra $$ with you.
Never, and I’m 110% absolutely f-cking serious about this, NEVER remove your mask during game play. The rental masks will be poor quality and will probably fog up on you. The immediate reaction is to lift your chin up when this happens and pull the mask away from your face to help it air out and reduce the fogging. Paintballs are generally .67 caliber and the markers are set up to shoot that paintball at about 280fps. One ball to the eye and your eyeball will explode like a grape being smashed underfoot. You will be blinded permanently. Not joking - DO NOT REMOVE YOUR MASK EVEN AN INCH during game play. Most legit fields will have areas where you can safely remove your mask and clean them, etc., after game play.
Likewise, always and I MEAN ALWAYS put the barrel cover or barrel plug (depending upon what your field uses) on your marker when you get shot during a game. Get hit, put the plug/cover on your marker, raise your arms over your head with marker in hand and yell “OUT-OUT-OUT” as you step out from whatever cover you were behind. By putting the plug/cover on first you’ll never forget and walk off the field of play into a safe area and then accidentally shot your eye, or someone else’s eyeball out.
Keep small. When you hide behind a tree or a man-made obstacle on a field, keep your body small. Be especially mindful of knees, feet, elbows, and importantly the hopper (the thing that holds the paintballs on the marker) are not sticking out behind the obstacle and becoming an easy target for your opponents. Most fields consider market hits to be a “kill” and you’ll be out. You’ll feel pretty stupid if you are hiding behind a clump of logs all safe but your not paying attention and someone shoots your hopper.
Definitely get knee pads. You’ll be doing a bit of running and crouching. Knee pads will help save you from being too beat up.
Don’t get upset if you yell “OUT” and raise your hands and step out from cover and get hit again. It happens. People are amped up and firing a lot of paintballs and especially new players will shoot anything they see moving before their brain registers your hands/marker up and they’re hearing “OUT-OUT-OUT”. Just yell “OUT” loudly with your marker over your head and exit the field promptly. Now, if someone “bonus balls” you - i.e. blatantly and intentionally keeps lighting you up while you walk off the field, you have every right to beat them with a log and bury their body in a creek bed.
Fields will have different rules for this but the general rule of thumb is if you’re within 10ft of an opposing player and they don’t know you’re there, don’t shoot them. Just yell “YOU’RE OUT”. Within 10ft a paintball hurts… A LOT… so it is a courtesy and safety thing. That said, absolutely 100% guarantee you that if you get within 10ft of another new player and you yell “YOU’RE OUT” and they didn’t know you were there and will wildly turn and start blasting away at you. So be ready to blast them right back then notify a ref.
Definitely wear boots. Depending upon the field, especially if it is outdoors, you’ll want the ankle support. The paint is water soluble and will wash off.
Most of all have a lot of fun on the field and tell lots of “war stories” afterwards!
AND KEEP YOUR MASK ON YOUR FACE AT ALL TIMES DURING GAME PLAY!!!