Im not sure how to get that. Vertical or horizontal is fine w/ a preference of horizontal

http://img100.imageshack.us/my.php?image=greenpinkyr0.png

All berzerk did in that hud (I think it's his hud) is create a group hud_group1_show 1 draw a frame hud_group1_frame .8 hud_group1_frame_color "0 0 0" and then he positioned it on the screen with hud_group1_pos_x and hud_Group1_pos_y

Then he did hud_ammo1_place group1 for ammo1 ammo2 ammo3 and ammo4
Hud_recalculate
hud_ammo1_pos_x and hud_ammo1_pos_y it then do the same for ammo2 and ammo3 and ammo4

Of course it could be done easier but you need to play around with the basics first before you learn optimization of hud items