Oh, and you do know that the Shapechange spell only turns you into animals, right? probably should've mentioned that before...
For future reference, the Physical Mask spell is the one you want. Since we're all new at this, including me, I'm going to make up for not telling you about that part, I'm going to give you each a free small container of nanopaste. Which Nalmar can program with whatever disguise you need. I'm going to assume that the three going into the building will want to look like generic CorpSec, so that's not exactly hard to do.
Electronics + LOG + Edit = 2 + 5 + 1 = 8
6 3 6 1 6 5 6 2 (5 hits)
The nanopaste disguise just adds its rating (the result of the programming test) to your dice pool for disguise checks. It cannot alter your shape or size, just like the Mask/Physical Mask spells, and lasts for 24 hours.
((I'm entering))
((Of course the Street Samurai is going in. He's useless elsewhere!))
((Mos will also be going in.))
Disguise + INT + Mask - Defaulting = 0 + 2 + 5 - 1 = 6
2 2 1 1 6 5 (2 hits)
Stealth + INT + Mask = 3 + 3 + 5 = 11
6 5 5 6 2 2 6 3 4 5 4 (6 hits)
Stealth + INT + Mask = 3 + 4 + 5 = 12
2 6 2 1 2 5 6 5 6 5 5 3 (7 hits)
Now normally, Tom's roll would get him caught immediately. But for some reason, the sample corporate security guards in the SR4 have absolutely no Perception skill to speak of.
CorpSec: Perception Test (0)You won't ever get to see exactly what NPCs are rolling, but I'm just going to say that these guys were rolling 2 dice.
As you walk in, two CorpSec guards sitting at the front desk take notice of you.
"Oh, just what we need; more new guys..."
"I dunno, with those things in the basement, I feel a lot safer having plenty of backup here."
"Whatever. You weren't even supposed to go down there in the first place. Hey, newbies! Guard room is down the hall!" She points to the hall on her left. "Last door on the left. Patrol routes and schedules are on the big board."
"You gonna tell 'em?"
"Oh right. The bosses don't want us looking around downstairs too much. You're just supposed to patrol the hallways. Don't go into any of the storage rooms. If the higherups find out you've been snooping..."