User blog comment:II Superlative/Der Riese solo?/@comment-1610535-20100223143010

I've reached level 22 solo. If I remember correctly( it's been awhile since I played zombies) rack up as many points as possible, buy your Bouncing Bettys, my favorite weapons are MG-42 PaP'd, and Ray Gun PaP'd. Get all your Perks, and make sure you have grenades. A good area up to about level 15 is the catwalk. Save your Bettys for the end of the level when there's like 1 zombie left. Place the Bettys behind you and around where you stand. After you kill the last zombie a new level will start and you will gain 2 more Bettys. Place them behind you as well. This is you fall back point, granted these Bettys will only buy you a few moments when you get over run. If you last to about level 18 or 19, move down to that dug out tunnel below the catwalk. Place Bettys on the stairs, and near the boarded up hole in the wall. As long as you keep getting points, you will have enough to keep re-stocking grenades down there. That's the best advice I can give you. Always remember to reload BEFORE you get Max Ammo!